Part D Br Based on your answers to Parts A, B, and C select the best Lewis structure (electron-dot structure) for HCH View Available Hint(s) C:Br:H:
Answers
CH₃Br (Methyl bromide or bromoethane) is an alkyl halide. It only possesses one carbon atom. Three C-H bonds and one C-Br bond make up CH3Br's Lewis structure. The core atom is carbon, while the bromine atom possesses three lone pairs.
What is a Lewis structure?Lewis structures are diagrams that show the valence electrons of atoms within a molecule. They are often referred to as Lewis dot structures or electron dot structures.
What is the Lewis structure of CH₃Br?Since Hydrogen is always on the outside and Carbon is less electronegative than Bromine, it is always positioned in the middle with Bromine being placed on top. The CH3Br molecule contains the elements hydrogen, carbon, and bromine. There are a total of 14 valence electrons in CH3Br.
The valence electrons given by:
Hydrogen atoms = 1×3 = 3
Carbon atom = 4×1 = 4
Bromine atom = 7×1 = 7
Hence, the total valence electrons = 3 + 4 + 7 = 14
The electron-dot-structure is attached below.
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Related Questions
Suppose we connect two containers (container Aand container B) of a non-ideal gas. Both containers are kept at the same temperature and their volume is fixed.
Answers
The relation between two containers A and B is : 3mA = 2mB.
What is the relation between two containers?
Given that ,
At the same temperature and volume V, two identical containers A and B with frictionless pistons contain the ideal gas. The gas mass in A is mA, and the gas mass in B is mB.
The initial pressure in both containers is,
PA = (nART) / V
= mA(RT/MV)
PB = (nBRT) / V
= mB(RT/MV)
The pressure after isothermal expanssion is :
PA = (nART) /2V
= mA(RT/2MV)
PB = (nBRT) /2V
= mB(RT/2MV)
Therefore, -ΔPA = PA - PA
= mA(RT/2MV)
Similarly, -ΔPB = PB - PB
= mB(RT/2MV)
Here , ΔPA = ΔP and - ΔPB = 1.5ΔP
So, -ΔPA / -ΔPB = 1/1.5
= -ΔPA = -ΔPB / 1.5
= mA(RT/2MV) = mB / 1.5 (RT/2MV)
= mA = 10mB / 15
Therefore the relation is 3mA = 2mB.
The complete question is " Two identical containers A and B with frictionless pistons contain the ideal gas at the same temperature and the same volume V. The mass of gas in A is mA and in B is mB. The gas in each cylinder is now allowed to expand isothermally to the same final volume 2V. The changes in pressure in A and B are found to be Δp and 1.5ΔP respectively. Then:"
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Was Teddy Roosevelt a Progressive reformer?.
Answers
Teddy Roosevelt is a Progressive reformer.
The teddy Roosevelt is a progressive reformer and earned the reputation such as the trust buster. teddy Roosevelt was an American known as the trust buster. the teddy Roosevelt when the president William mckinley was the assassinated in 1901. between the 1901 and 1919, the presidents teddy roosvelt , william howard taft and the woodrow wison launched the series of the progressive reforms from the white house that affected the entire nation. he wanted the Americans to have the square deal that is used to describe the progressive reforms.
Thus, Teddy Roosevelt is a Progressive reformer.
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What does hydrogen need to have a full outer shell?.
Answers
Hydrogen outer shell full with only two electrons, to have completely filled electronic configuration.
Hydrogen has atomic number of 2 i.e., it has total of 2 electrons. As per the rule maximum of 2 electrons can be filled in first energy shell.
In case of Hydrogen both the electrons are present in n = 1 shell, here n is principle quantum number. It has completely filled electronic configuration and also the most stable electronic configuration.
Valence electrons can be defined as the number of electrons present in the outermost shell of the atom of a chemical element.
Therefore, hydrogen would require just a single valence electron to have full outer shell and it has only one proton and one electron in its nucleus.
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What is the main purpose of Marxism is?.
Answers
The creation of a classless society on a global scale is, as we all know, the main objective of Marxism. As as this may seem to most people, many capitalist beliefs to be dismantled before it could ever take place.
What sort of ideology is that, specifically?A group's or a person's set of views and opinions can be referred to as their ideology. Ideology frequently alludes to a number of policy convictions or a collection of concepts that define a certain culture. The ideologies of capitalism, communism, socialism, & marxism exist.
What does ideology in society mean?A group of widely held social beliefs known as an ideology are frequently advanced to support a certain political course of action. Ideologies serve as an explanatory tool by offering justifications for social facts and problems, allowing both individuals and organizations to locate themselves in the larger social structure.
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which of the following elements would have the greatest difference between the first and the second ionization energy?
Answers
By losing a sixth electron, the noble gas electronic configuration is produced. Therefore, the first and second ionization energies do not differ significantly.
Which element's initial and second ionization energies would differ most from one another?Alkali metals achieve stable noble gas configuration after first ionization, which results in a high difference between the first and second ionization energies. The energy needed to remove an electron from a neutral atom when it is in the gaseous form is known as the first ionization energy.This attraction is further diminished in potassium because the electron is more susceptible to shielding due to the presence of additional shells. As a result, the ionization energy is reduced since less energy is required to remove the outermost electron.There is a significant difference between the first and second ionization energy because after removing one electron, the second electron must be removed from a different shell with an octet configuration.To learn more about ionization refer to
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Which of the following statements about equilibrium is true?1) Equilibrium favors the products when the energy of the products is higher than the energy of the reactants.2) Equilibrium favors the reactants when the energy of the product is lower than the energy of the reactants.3) Equilibrium favors the products when they are less stable than the starting material of a reaction4) Equilibrium favors the products when they are more stable than the starting material of a reaction.
Answers
The assertion that equilibrium is true in option D When the products of a reaction are often more durable than the starting material, equilibrium favors the products.
The definition of equilibrium.
A static (like a body acted upon by energies whose result is zero) or fluid (like a chemical reaction reversible where the speeds in both sides are equal) condition of equilibrium between opposing sides or actions: a condition of emotional or intellectual equilibrium.
What does a body's balance mean?
When the body is in equilibrium, neither its internal energy nor its motion are affected by the passage of time. The forces are equalized if an item is in equilibrium.
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What allylic alcohol and det isomer are needed to make the following chiral epoxide using a sharpless asymmetric epoxidation reaction? be sure to answer all parts. Draw the allylic alcohol using a skeletal structure.
Answers
Propenal and propanone allylic alcohol are the two constitutional isomers that contain carbon-oxygen double bonds.
What exactly are isomers?
Isomers have chemical structures that are nearly identical but have different spatial arrangements.
A double bond connects the carbon and oxygen atoms in this isomer. Because both molecules contain allylic alcohol three carbon atoms, they can be referred to as prop. Propenal and propanone are names derived from the presence of an aldehyde and a ketone functional group.
Propenal and propanone are the two constitutional isomers with carbon-oxygen double bonds.
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(HELPP)
2. Describe at least three properties of elements in groups 1, 17, and 18.
Answers
Group 1 in periodic table is called alkali metals which are metals containing sodium, potassium, lithium etc. Elements of 17th group are halogens and elements of 18th group are noble gases.
What are group in periodic table?
Groups in periodic table are vertical columns containing elements of same number of valence electrons and similar chemical and physical properties.
Group 1 is alkali metals with one valence electron containing the elements sodium, potassium, lithium and cesium and francium. They are metals with high thermal and electrical conductivity.
Group 17 are halogens containing highly electronegative elements chlorine, fluorine, bromine, iodine and acetatin. They are non-metals with high reactivity. Halogens have high ionization energy.
Group 18 is noble gases, helium, argon, neon, krypton, xenon and radon all are non metals with highly stable electronic configuration. They are inert at normal conditions and thus they are called inert gases. They rarely form compounds.
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Atoms of different element can not have same atomic number because only same type of atoms combine to form element. Atoms belonging to different element can have different atomic number.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same. Two or more than two atoms with different physical or chemical properties can not combine together to form an element.
Elements that belongs to group 1 are metals. Group 1 elements have valency 1. Elements that belong to group 17 are called halogens and has high electronegativity. Elements belonging to group 18 are noble gases, they are not at all reactive.
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it is common to represent an element using its atomic symbol, which is an abbreviation based on its name. the number, given the symbol z, is written as a left subscript while the number, given the symbol a, is written as a left superscript next to the atomic symbol.
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The atomic number given the symbol z is written as a left subscript while the mass number given the symbol a is written as a left superscript next to the atomic symbol.
The atomic number or atomic number of a chemical element is the number of electric charges in the nucleus. For normal atomic nuclei, this equals the number of protons or the number of protons found in the nucleus of each atom of that element. Chemical symbols are abbreviations used to denote elements or atoms of elements.
Element symbols are abbreviations of chemical names. For example, the symbol for hydrogen is H and magnesium is Mg. A chemical symbol is an abbreviation or short representation of the name of a chemical element, commonly assigned in relation to its Latin name. All natural elements have one or two-letter symbols. Some man-made elements have temporary three-letter symbols.
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Can electromagnetic waves transfer energy without an electric field?.
Answers
No, the electromagnetic waves transfer energy without an electric field since the transfer of energy by electromagnetic waves is called electromagnetic radiation.
What do you mean by Electromagnetic waves?The oscillations here between electrostatic potential and a magnetic field produce waves known as electromagnetic waves, or EM waves. In other words, magnetism fields oscillate to form electromagnetic (EM) waves.
Electromagnetic waves, where are they?In contrast to wave propagation, electromagnetism waves can travel without a medium. This implies that microwaves can pass not only through stationary surfaces like air and rock but also through empty space.
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suppose of copper(ii) nitrate is dissolved in of a aqueous solution of sodium chromate. calculate the final molarity of copper(ii) cation in the solution. you can assume the volume of the solution doesn't change when the copper(ii) nitrate is dissolved in it. round your answer to significant digits.
Answers
According to the given statement The nitrate ion has a molarity of 0.241 M.
How can I determine molarity?We divide the molar mass of solute but by total volume of liter of solution to determine the molarity of a solution.
Briefing:Mass of copper(II) nitrate = 3.40 grams
Volume of the sodium chromate 0.20 M aqueous solution is 150 mL, or 0.15 L.
Step 2: The balanced equation
Cu(NO3)2 + Na2CrO4 → CuCrO4 + 2NaNO3
→ 2Na+ + 2NO3-
Step 4: Calculate moles of nitrate ion
When we consume 1 mole of Cu(NO3)2, we make 2 moles of NO3- This works out to 0.0181 mole of Cu(NO3)2 and 0.0362 moles of NO3-
Step 5: Calculate molarity of the nitrate ion
Molarity : Moles / volume
Molarity NO3-
= 0.0362 moles / 0.150 L
Molarity NO3-
= 0.241 M
The nitrate ion has a molarity of 0.241 M.
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The complete question is -
Suppose 3.40g of copper(II) nitrate is dissolved in 150.mL of a 0.20M aqueous solution of sodium chromate. Calculate the final molarity of nitrate anion in the solution. You can assume the volume of the solution doesn't change when the copper(II) nitrate is dissolved in it. Round your answer to 3 significant digits.
which of the following solid substance(s) is a covalent network solid?select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer.asio 2bh 2ockbryour answerdk
Answers
C is the choice that is a crystalline solid with a covalent network (diamond).
SOLID—does it imply good?Solid may seem like a straightforward term at first appearance, but it actually has a variety of meanings. A reliable buddy is trustworthy. It was pretty excellent, but not amazing, if you deliver a strong performance. Likewise, if you succeed in winning convincingly, you do it by a sizable but not overwhelming margin.
A SOLID object is what?A solid is distinguished by its reinforcing and resilience to external forces. A solid substance, unlike a liquid, somehow doesn't flow to conform to the form of its container or, like a gas, expand to cover the entire space.
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the half-lives of different radioisotopes are given in the table. radioisotope half-life (min) argon-44 12 lead-196 37 potassium-44 22 indium-117 43 how long would it take, in minutes, for the amount of argon-44 to decrease from 72.0 mg to 9.00
Answers
Radioisotope Half-life.
A radionuclide is a nuclide that has excess nuclear electricity, making it unstable. This extra strength can be used in one of 3 methods: emitted from the nucleus as gamma radiation; transferred to one in every one of its electrons to launch it as a conversion electron, or used to create and emit a brand new particle from the nucleus.
Radioisotopes in remedy. Nuclear medicine uses small amounts of radiation to offer statistics about a person's frame and the functioning of specific organs, ongoing biological procedures, or the disordered country of a particular contamination. In maximum instances, statistics is utilized by physicians to make an accurate prognosis.
Radioactive decay is the technique wherein a radioactive atom spontaneously offers off radiation within the shape of energy or debris to reach a more strong state. it's far more important to differentiate between radioactive cloth and the radiation it offers.
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chemcollective what is the mass of agno3 that is present in 'solution 3'? (please use three significant figures for your answer)
Answers
The molar mass of silver nitrate is 169.9.
What is molar mass?
The molar mass of a chemical compound is determined by dividing its mass by the quantity of that compound, expressed as the number of moles in the sample, measured in moles. The molar mass of a substance is a bulk attribute rather than a molecular one. The compound's molar mass is an average over numerous samples, which frequently have different masses because of isotopes. A terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth, the molar mass is most frequently calculated using the standard atomic weights. It is appropriate to convert between a substance's mass and an amount using the molar mass.Particularly for molecular compounds, the terms molecular mass and formula mass are frequently used as synonyms for molar mass; however, the definitions given by the most reliable sources differ.To know more about molar mass, click the link given below:
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When balancing a redox reaction, begin by separating thereaction into _______________ (reactants and products, halfreactions, or elements). Balance each of these in terms of______________ (stoichiometry, number of moles, or atoms and charge). Multiply by some factor if necessary so that the number of_______________ (elements, electrons, or moles) appearing in both is the same. Add these together, canceling out any terms that appear on both sides of the final equation.
Answers
To solve such this we must know the concept of redox chemical reaction and their balancing in acidic, neutral and basic medium. The blanks should be filled with half reactions, atom and charge and electrons.
What is chemical reaction?
Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.
When balancing a redox reaction, begin by separating the reaction into half reactions (reactants and products, half reactions, or elements). Balance each of these in terms of atom and charge (stoichiometry, number of moles, or atoms and charge). Multiply by some factor if necessary so that the number of electrons (elements, electrons, or moles) appearing in both is the same. Add these together, canceling out any terms that appear on both sides of the final equation.
Therefore, the blanks should be filled with half reactions, atom and charge and electrons.
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the formal charge of an atom reflects the electron count of the particular atom within the molecule, and can be determined using the following formula:
Answers
Formal charge = valence electrons - Number of non bonding electrons - number of shared electrons ÷ 2
A formal charge (F.C.) is the charge assigned to an atom in a molecule in the covalent view of bonding, assuming that electrons in all chemical bonds are shared equally between the atoms, regardless of their relative electronegativity.
The formal charge is generally the difference between an atom's number of valence electrons in its neutral free state and the number allocated to that atom in a Lewis dot structure.
When choosing the optimum Lewis structure or also called as the predominant resonance structure for a molecule, it is important to keep the formal charge on each of the atoms as low as feasible.
The following equation can be used to compute the formal charge of an atom in a molecule:
Formal charge = valence electrons - Number of non bonding electrons - number of shared electrons ÷ 2
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FILL IN THE BLANK. in the ___ quadrant of the core competence--market matrix, the focus is on leveraging current core competencies to improve current market position.
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The focus is on using current core competencies to enhance current market position in the existing competence-existing market quadrant of the core competence-market matrix.
In this setting, products and services are bought and sold, and money of value is exchanged. With this in mind, it is clear that the existing competence-existing market places a strong emphasis on using current core competence-existing market to strengthen the market position that is currently in place.
A task, job, or activity cannot be done without the presence of one or more core abilities. A person succeeds in a certain endeavour when they possess certain core talents.
Every employee needs to possess core job-related skills. Typists need to be able to type quickly.
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What can be used to identify a chemical reaction as a combustion reaction?.
Answers
The reactant oxygen is. What hints may be utilized to determine whether a chemical reaction is a replacement reaction? Two ions that seem to trade places in the reactants of the reaction are there.
Examples of chemical reactions and what they are.Reactants engage in a chemical reaction during a chemical reaction, which results in the transformation of reactants into products. As an illustration, when breathing, oxygen is inhaled, which causes glucose to react with it to create carbon dioxide, water, and energy.
In simple terms, what is a chemical reaction?chemical reaction: a process in which one or more substances—the reactants—are changed into one or more additional substances—the products. Chemical elements and compounds are both substances.
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the triple point of co2 occurs at nearly 1000 times greater pressure and at a lower temperature than the triple point of h2o. based on this information, which of the following statements is true
Answers
Since liquid CO2 cannot exist at pressures lower than 5.11 atm, the triple point is defined as 56.6 °C and 5.11 atm.
Are CO2 liquids explosive?
Although it can impair judgement at high doses, carbon dioxide is neither poisonous nor combustible. Asphyxiation is typically seen as the primary risk associated with CO2. The Boiling Liquid Expanding Vapour Explosion, however, is a serious risk connected to compressed CO2 (BLEVE)
What PSI does CO2 turn into liquid at?
Only at pressures more than 5.1 atm does liquid carbon dioxide form; the triple point of carbon dioxide is approximately 518 kPa at 56.6 °C. Depending on the pressure, the liquid's boiling point ranges from -70°F to +88°F. The expansion ratio when vaporised at 60°F is 535:1. CO2 is a gas or liquid.
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(nh4)2s is a strong electrolyte. determine the concentration of each of the individual ions in a 0.450 m (nh4)2s solution.
Answers
There are 2 NH4 in the equation therefore just multiply the molarity of the total solution by 2. since there is only 1S in the equation then you just keep the same molarity.
Hydrofluoric acid is a weak acid and does not completely dissociate in water. For this reason, only a few moles of ions are available in aqueous solutions, making them weak electrolytes. Since water has a lower pKa than ammonia, it is a stronger acid than ammonia and donates protons to ammonia bases.
Ammonium hydroxide can be represented by its chemical formula NH4OH. In water, ammonium hydroxide partially dissociates into ammonium and hydroxide ions. As we saw with acetic acid, ammonium hydroxide is a weak electrolyte because its ions can move freely and it conducts electricity to some extent.
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What does a sanitizer kit measure Servsafe?.
Answers
The correct answer is that the test is done to measure the strength in ppm.
A sanitizer test kit is used to test the strength of the sanitizer.
A sanitizer is a highly viscus liquid which is used to keep the body surface clean from the micro organisms like the bacteria.
There is a proper test conducted to check the strength of the sanitizer.
It is usually done to check if the sanitizer is powerful enough to shield against such organisms.
In this test, the sanitizer is tested by its strength and the value is always in parts per million(ppm).
This test is done in various ways depending on the type of sanitizer.
For example, the strips of chlorine-based sanitizers are dipped into the sanitizing solution, then immediately remove and compare to the color chart. Then this color indicates a value and the value is the parts per million or ppm.
Therefore, the sanitizer testing kit tests the sanitizer based on the concentration of parts per million (ppm).
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what atomic or hybrid orbital on the central n atom makes up the sigma bond between this n and an outer h atom in ammonia, nh3 ?
Answers
A N sp3 hybrid orbital and a H 1s orbital combine to generate each N-H - sigma bonding orbital, which has two electrons.
What is a sigma bond?Atomic orbitals and/or hybrid orbitals overlapping along the bond axis to produce a covalent bond known as a sigma bond.Sigma bonds can form when two overlapping s atomic orbitals, one s orbital and one p orbital, or two p orbitals overlap. This is illustrated in the diagram above. Sigma bonding can also result from the overlap of two hybridized atomic orbitals, such as sp-sp.The overlapping of atomic orbitals distinguishes sigma and pi bonds from other varieties of covalent connections. Atomic orbitals colliding together create covalent bonds.In contrast to pi bonds, which are created by the lateral overlapping of two atomic orbitals, sigma bonds are created when atomic orbitals overlap head-to-head.To learn more about sigma bond refer to :
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What causes ionic bonds to form?.
Answers
Ionic bond is formed due to the transfer of some electrons from one atom to another
All matter is made up of tiny building blocks that are known as atoms. Atoms make up elements, which are the substances found naturally on Earth or in the atmosphere that can't be further chemically broken down. Atoms of the different elements bond with each other in order to form molecules and compounds.
An ionic bond is formed by the complete transfer of some electrons from one atom to another. The atom that is losing one or more electrons becomes a cation which is a positively charged ion. The atom that is gaining one or more electron becomes an anion which is a negatively charged ion. When the transfer of electrons occurs, an electrostatic attraction between the two ions of opposite charge takes place and an ionic bond is formed.
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Gallium (Ga) is in Group 3 of the modern periodic table.
Give the numbers of electrons and neutrons in an atom of the isotope Ga
[2 marks]
Number of electrons
Number of neutrons
Answers
Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, number of electrons and number of neutrons of gallium-69 are 31 and 38.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.
Natural gallium (31Ga) consists of a mixture of two stable isotopes: gallium-69 and gallium-71.
Mass number of gallium-69 is 69
atomic number of gallium-69 is 31
Number of electrons of gallium-69 is 31
Number of neutrons of gallium-69 is 38
Therefore, number of electrons and number of neutron of gallium-69 are 31 and 38 respectively.
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. Two beakers in a laboratory are full of white crystals. One beaker contains sodium chloride, and the
other beaker contains sucrose. The labels have come off the beakers, however, so you are not sure
which is which. A chemistry handbook lists the solubility of sodium chloride in water as 36 g/100 mL at 25°C and the solubility of sucrose in water as 200 g/100 mL at 25°C. Write a procedure that describe how you could safely identify the two chemicals.
Answers
Conduction, which means electricity is transmitted through a solution to see if it can carry an electrical current.
What is conduction procedure ?This one focuses on conduction, which is the transmission of electricity through a substance to determine its electrical conductivity. You must understand a few things about how atoms join or bind before we can move on since this affects whether or not they can conduct an electrical current.A material known as an ionic compound is one that has atoms bound together by an ionic connection, in which electrons are transported from one atom to another. In contrast, a covalent bond occurs when two atoms share electrons. One more thing before we move on: when some substances are dissolved in water, electrolytes can be produced. This indicates that the substance has electrical conductivity.Learn more about Conduction refer to :
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Glucose molecules moving through protein channels is an example of what type of transport?.
Answers
Glucose molecules moving through protein channels is an example of active transport.
Glucose is an easy sugar with the molecular system C₆H₁₂O₆. Glucose is average the amplest monosaccharide, a subcategory of carbohydrates.
A blood sugar degree of less than 140 mg/dL (7. eight mmol/L) is regular. A studying of more than 200 mg/dL (eleven.1 mmol/L) after-hours method you've got diabetes. An analysis between 140 and 199 mg/dL (7.8 mmol/L and 11. zero mmol/L) approaches you've got prediabetes.
Blood sugar, or glucose, is the main sugar found in your blood. It comes from the food you eat, and is your frame's essential supply of energy. Your blood consists of glucose for all your frame's cells to use for electricity. Diabetes is an ailment in which your blood sugar ranges are too high.
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Is the ghost in Hamlet a metaphor?.
Answers
Ghosts are frequently used as metaphors for the need for justice since they are seen as supernatural echoes of a moral injustice.
What does the Ghost in Hamlet stand for? Hamlet's father's ghost makes an unsettling revelation and seeks retribution in Shakespeare's tragedy Hamlet.It is customary to interpret ghosts as metaphors for the desire for justice because they are seen as supernatural reminders of a moral injustice.Inspiring Hamlet to exact his father's retribution is the ghost, a symbol.The ghost makes his first entrance, which starts the entire plot's action.Hamlet learns the truth from the ghost's warnings and becomes enraged enough to exact revenge on his father after they turn out to be true.Act 1, Scene 2 of Hamlet's first soliloquy features an insightful metaphor that reads as follows: "This unweeded garden is going to seed.Things foul and repulsive in nature / Just possess it."Hamlet muses over the recent happenings in Elsinore in this despondent monologue.To learn more about Hamlet refer
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Although a certain molecule is involved in a specific reaction, its structure and chemical composition are exactly the same after the reaction as before the reaction. This molecule is most likely classified as.
Answers
This molecule is most likely classified as an enzyme.
In chemical reactions, the total mass of all substances involved in the reaction remains the same. The number of atoms in the reaction also remains the same. Mass cannot be created or destroyed by chemical reactions. synthetic. A chemist is said to be synthesizing or synthesizing a new substance when he makes a new substance out of other substances.
Reactants are converted to products and the process is represented by a chemical formula. The substances that enter a chemical reaction are called reactants, and the substances that are formed at the end of the reaction are called products. A reversible reaction occurs when the forward and reverse directions of the reaction proceed at the same rate and the amounts of reactants and products do not change overall.
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One reason spectroscopists study excited states is to gaininformation about the energies of orbitals that are unoccupied inan atom's ground state. Each of the following electronconfigurations represents an atom in an excited state. Identify theelement, and write its condensed ground-state electronconfiguration. (Type your answer using the format [Ar] 4s2 3d10 4p2for [Ar]4s23d103p2.)
(a)1s22s22p63s13p1
element
ground state electron configuration [ ] (b)1s22s22p63s23p44s1
element
ground state electron configuration [ ] (c)1s22s22p63s23p64s23d44p1
element
ground state electron configuration [ ] (d)1s22s22p53s1
element
ground state electron configuration [ ]
Answers
[Ne] 3s^2
B) Cl
[Ne] 3s^2, 3p^5
C) Mn
[Ar] 4s^2, 3d^5
D) Ne
[He] 2s^2, 2p^6
The strong attraction that holds atoms together in a metallic bond is the result of.
Answers
Strong forces of attraction between the positive metal ions and the delocalized ‘sea’ of electrons.
