Explanation:
W= F×d
W=29×6
W=174J or 174Nm
sylvanite is a mineral that contains 28.0 % gold by mass. how much sylvanite would you need to dig up to obtain 95.0 g of gold? express your answer with the appropriate units.
To obtain 95.0 g of gold from sylvanite, we would need to dig up 343.75 g of sylvanite.
To obtain 95.0 g of gold from sylvanite, we would need to dig up 343.75 g of sylvanite, since 28.0 % of the sylvanite is gold. To calculate this, we would need to use the following equation:
95.0 g Gold = (100.0 g Sylvanite)(0.28)
Rearranging the equation to solve for the mass of Sylvanite, we get:
100.0 g Sylvanite = (95.0 g Gold)/(0.28)
Solving for the mass of Sylvanite, we get 343.75 g Sylvanite. Therefore, to obtain 95.0 g of gold from sylvanite, we would need to dig up 343.75 g of sylvanite. The units for this answer are therefore 343.75g Sylvanite.
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melanie obtains a value of 2.784 g/ml for the density of her unknown solution. the actual density of the solution is 1.381 g/ml. what is the % error of melanie's measurement? express your response to two digits after the decimal.
The percentage error of melanie's measurement of the unknown solution would be = -50%
What is percentage error?Percentage error is defined as the difference between estimated value and the actual value in comparison to the actual value and is expressed as a percentage.
The actual density of the unknown solution = 1.381 g/ml.
The value obtained (expected value) = 2.784 g/m
Percentage error
=actual value-expected value/ expected value×100/1
= 1.381- 2.784/2.784 × 100/1
= −1.403/2.784 × 100
= -0.5 × 100
= -50%
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what starting alkene reacted with h2o and h2so4 catalyst is required to produce 3-methylpentan-3-ol
The starting alkene when reacted with H₂O and H₂SO₄ catalyst is required to produce 3-methylpentan-3-ol is 3-methyl-2-pentene.
The alkene that is 3-methyl-2-pentene when reacted with H₂O and H₂SO₄ catalyst will produce the 3-methylpentan-3-ol . The reaction is followed by the acid - catalyzed hydration. The reaction is as follows :
CH₃ - CH₂ - C = C - CH₃ + H₂O + H₂SO₄ ---->CH₃ - CH₂ - C(CH₃)- CH₂ - CH₃
| |
CH₃ OH
The Acid catalyzed hydration can be define as the process of the breaking the pi bond in the alkene or the alkyne to add water.
Thus, the starting alkene name is 3-methyl-2-pentene .
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A student uses 2.80g of iron to make 12.5g of hydrated iron(ii) sulfate crystals. this is a 90% yeild.
calculate the mass of hydrated iron (ii) sulfate crystals made from 2.8g of iron if the yeild is 100%.
Answer:
2.52g
Explanation:
2.8g ÷ 100 = 0.028 x 90 = 2.52g
According to percent yield concept, 3.11 grams of hydrated iron (ii) sulfate crystals are made from 2.8 g of iron if the yield is 100%.
What is percent yield?Percent yield is defined as the ratio of actual yield to the theoretical yield multiplied by 100. If the actual and theoretical yield are same then the percent yield is 100%.If actual yield is less than the theoretical yield then the percent yield is less than 100%.Reason of this condition arising is the incompletion of reaction or loss of sample during recovery process.
In cases where percent yield is over 100% it indicates that more sample is recovered than the predicted amount.This condition arises when there are other simultaneous reactions taking place leading to the formation of product. It can also arise if there is incomplete removal of impurities from the sample .
If 2.80 g is 90% yield than for 100 % yield 2.80×100/90=3.11 g of iron (II) sulfate is needed.
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When solutions of BaCO3 and Fe2(SO4)3 are combined, what precipitate(s) forms?
O BaSO4 and Fe₂(CO3)3
O Fe2(CO3)3
O None of the above
O BaSO4
Answer: I am pretty sure these will form
BaSO4 and Fe2(CO3)3
Explanation:
The positive ions go with the negative and vice versa
Why might sifting and sorting be good methods of looking for gold among the soil and
small rocks that sit at the bottom of a river?
Learning to pan or sifting and sorting for gold is simple. In compared to most other prospecting tools, gold pans are affordable. Generally speaking, gold pans are portable, lightweight items that can be transported almost anywhere.
What is Sifting and Sorting ?Within a medium-sized pan, panning employs water to separate heavy gold particles from other lighter ones. In this procedure, water and sediment or ore presumed to contain gold are added to a large, curved pan.
Use your fingers to break up any dirt or clay pieces, taking cautious not to allow any material escape. Place the pan in the shower. Pick up the classifier and comb through it with your fingers for gold nuggets once the rocks on top have been thoroughly cleaned.
By utilizing a sifting and sorting to recover gold from a placer deposit, placer mining, also known as gold panning, is a conventional mining method. Due to its low cost and relative simplicity, the method is one of the easiest ways to extract gold and is well-liked among geology enthusiasts.
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what compound is nadh converted to when it transfers high energy electrons to the first electron carrier
NADH (nicotinamide adenine dinucleotide hydrogen) transfers high-energy electrons to the first electron carrier in the electron transport chain, which is usually a protein complex in the inner membrane of mitochondria.
During this transfer, NADH is converted to NAD+. This reaction provides energy for the production of ATP (adenosine triphosphate) through a process known as oxidative phosphorylation. The transfer of electrons from NADH to the electron transport chain is accompanied by the movement of protons from the matrix side of the inner mitochondrial membrane to the intermembrane space, creating a proton gradient that drives the generation of ATP. The conversion of NADH to NAD+ is an essential step in cellular respiration, as it allows cells to produce ATP through the oxidation of food molecules.
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do tetroprotic acids exist
Yes, tetraprotic acids do exist. An example of a tetraprotic acid is Ethylenediaminetetraacetic acid (EDTA).
Acids are majorly monoprotic, diprotic and triprotic depending on the amount of hydrogen ions they produce in water. Monoprotic acids produce a single hydrogen ion when they are dissolved in water. For example, hydrochloric acid. Diprotic acids produce two hydrogen atoms when they are dissolved in water. For example, sulphuric acid.
Similarly, triprotic acids release three hydrogen when dissolved in water. An example of triprotic acids is phosphoric acid. Tetraprotic acids also exist. EDTA is an example of a tetraprotic acid.
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Students take three samples of three different liquids, all at the same temperature, and place the samples into three identical beakers. They place all three beakers onto the same hot plate. Which of the following observations would support the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter?
The observation that would support the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter is D. After the same amount of time, the three samples were at different temperatures.
What is Energy Transfer?The process of moving energy from one system to another, such as through the transmission of heat, work, or mass, is known as energy transfer.
Hence, because of the use of samples by the students using different liquids at the same temperature, option D best supports the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter
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Students take three samples of three different liquids, all at the same temperature, and place the samples into three identical beakers. They place all three beakers onto the same hot plate. Which of the following observations would support the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter?
Before heating, the initial masses of the three different liquids were slightly different.
After turning off the hot plates, all the liquids eventually returned to room temperature.
Some of the heat from the liquids was transferred to the air around the beakers.
After the same amount of time, the three samples were at different temperatures.
Use the information to answer the following question.
2 AB + 2X2 → 2 AX2 + B2
What are the potential identities of A, B, and X?
A A = Mg, B = CI, X = O
B A = Na, B = O, X = CI
C A = Na, B = CI, X = O
D A = Mg, B = 0, X = CI
Option A and option C are the potential identifiers of A, B and X.
What is chemical equation?The transfer of electrons and the rearranging of atoms, the equation depicts how the reactants become the products.
Chemical formulas serve as a representation of the reactants and products, and each element is represented by its chemical symbol.
How do you determine it?The chemical symbols for the components of the reaction are represented by A, B, and X.
Options A, B, C, and D offer potential elemental arrangements for A, B, and X.
Because B cannot be represented by 0, only Options A (A = Mg, B = Cl, X = O) and C (A = Na, B = Cl, X = O) are viable choices (Option D). Magnesium, chlorine, and oxygen are represented by Option A, while sodium, chlorine, and oxygen are represented by Option C.
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the mass percentage of hydrochloric acid within a solution is 40.00% . given that the density of this solution is 1.200 g/ml, find the molarity of the solution.
The molarity of the solution will be 13.12 M.
The formula used to calculate molarity is as follows:
Molarity = Number of moles of solute / Volume of solution
Consider 1L sample of the solution.
So, use the density of the solution to determine grams in 1L,
1.200 g/ML × 1000 mL = 1200g
The percent concentration by mass is 40.0% HCl.
The mass of hydrochloric acid in 1200g of solution,
1200 × 40/100 = 480 g HCl
Use hydrochloric acid's molar mass to determine number of moles,
1 mole HCl = 36.46g
480 g = 13.17 moles HCl
The molarity of the solution will thus be 13.17/1.00 L = 13.17.
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a solution prepared by dissolving 190.0 mg of sugar (a molecular compound and a nonelectrolyte)
The concentration in 500.0 mL of water is 0.38 mol/L. The sugar's molar mass may be estimated using the following formula: molar mass = mass divided by the number.
of moles moles = mass divided by molar mass 190.0 mg / (1 g/1000 mg) = 0.19 g moles 0.5 L = 500.0 mL = 0.19 g / (0.38 mol/L) The molar mass is calculated as 0.19 g / 0.38 mol = 500 g/mol. The molar mass of a material is the mass of one mole given in grams per mole. It is the sum of the atomic masses of all the atoms in a substance's molecule and is commonly used to calculate the quantity of a substance in a sample. The molar mass of a molecule may be estimated by summing the atomic masses of each element and translating the result to grams per mole.
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HI is considered an acid because
A) it is a polar molecule.
B) it can dissolve in water.
C) it produces hydronium ions in solution.
D) it produces hydroxide ions in solution.
HCl is a strong acid which is composed of hydrogen and chlorine ions. When it is dissolved in water, it produces hydronium ions (H3O+) and chloride ions (Cl-).
The equation for this acid-base reaction is: HCl (aq) + H2O (l) <=> H3O+ (aq) + Cl- (aq). The HCl molecule has a strong attraction for the water molecules due to its strong polarity. This attraction causes the release of hydrogen ions (H+) which combine with water molecules to form hydronium ions (H3O+). The hydronium ions are the acid in the solution and are responsible for the acidic properties of HCl. The chloride ions remain in solution, but do not contribute to the acidic properties. The presence of hydronium ions means that HCl is considered an acid. The strength of the acid can be determined by measuring the pH of the solution, which is usually less than 7.
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What volume of 0.4163M barium chloride will react completely with(a) 12.45 mL of 1.732M sulfuric acid?(b) 15.00 g of ammonium phosphate?(c) 35.15 mL of 1.28M potassium carbonate?
Answer:
Explanation:The equation for the reaction between barium chloride and sulfuric acid is:
BaCl2(aq) + H2SO4(aq) -> BaSO4(s) + 2HCl(aq)
(a) Using the equation, we can calculate the number of moles of barium chloride and sulfuric acid:
n(BaCl2) = 0.04163 * 12.45 mL = 0.5138 mol
n(H2SO4) = 1.732 * 15.00 mL = 0.2601 mol
Since the ratio of barium chloride to sulfuric acid is 1:2, the limiting reagent (the reagent that determines the amount of product formed) is the sulfuric acid. The maximum amount of barium sulfate that can be formed is equal to the amount of sulfuric acid used, which is 0.2601 mol.
(b) To find the amount of barium chloride required to react with ammonium phosphate, we need to write the balanced equation for the reaction. The balanced chemical equation for the reaction between barium chloride and ammonium phosphate is not known.
(c) The equation for the reaction between barium chloride and potassium carbonate is:
BaCl2(aq) + K2CO3(aq) -> BaCO3(s) + 2KCl(aq)
Using the equation, we can calculate the number of moles of barium chloride and potassium carbonate:
n(BaCl2) = 0.04163 * 35.15 mL = 1.4506 mol
n(K2CO3) = 1.28 * 35.15 mL = 0.4536 mol
Since the ratio of barium chloride to potassium carbonate is 1:2, the limiting reagent (the reagent that determines the amount of product formed) is the potassium carbonate. The maximum amount of barium carbonate that can be formed is equal to half the amount of potassium carbonate used, which is 0.4536/2 = 0.2268 mol.
The volume of barium chloride is :
(a) 12.45 mL of 1.732 M sulfuric acid is 0.050 L.
(b) 15.00 g of the ammonium phosphate is 0.027 L.
(c) 35.15 mL of 1.28M the potassium carbonate is 0.018 L.
The molarity of the barium chloride = 0.4163 M
(a) The volume of sulfuric acid = 12.45 mL = 0.01245 L
The molarity = 1.732 M
Moles = molarity × volume
= 1.732 × 0.01245
= 0.021 mol
The volume of the BaCl₂ = moles / molarity
= 0.021 / 0.4163
= 0.050 L
(b) 3BaCl₂ + 2(NH₄)₃PO₄ ----> Ba(PO₄)₂ + 6NH₄Cl
The mass of the ammonium phosphate = 15 g
The moles of ammonium phosphate = 15 / 149
= 0.100 mol
Moles of (NH₄)₃PO₄ = (2/3) 0.100
= 0.066
The volume of the BaCl₂ = 0.066 × 0.4163
= 0.027 L
(c) The moles of the potassium carbonate = 0.03515 × 1.28
= 0.044 mol
The volume of the BaCl₂ = moles / volume
= 0.044 / 0.4163
= 0.018 L.
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5. A certain radio wave has a wavelength of 7 Find the frequency of this radio wave.
In the electromagnetic spectrum, radio waves are a form of electromagnetic radiation having wavelength longer than infrared light.
Describe a spectrum?
The characteristic frequencies of electromagnetic waves (or a subset of it) that are released or absorbed by a material, atom, or molecule are known as a spectrum.The range of colours that appear on a display when white light goes thru a prism and separates into its individual colours is known as the spectrum. Vi (V), indigo (1), blues (B), greenish (E), yellow (X), oranges (O), and red are the colours of the rainbow (R).
Describe a prism ?
A prism is a transparent glass piece or another material that has been cut with exact angles on plane faces for use in reflecting and analysing light in optics a typical triangle
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why salt concentration increase at reboiler in solid liquid extraction
In solid-liquid extraction, the concentration of salt in the reboiler can increase due to several reasons: Evaporation of the solvent, Crystallization, Incomplete extraction, Poor mixing
Evaporation of the solvent: As the solvent is heated in the reboiler, some of it will evaporate, leaving behind a higher concentration of the solute (salt) in the reboiler.Crystallization: If the solute concentration becomes too high, the salt may start to crystallize out of the solution, further increasing its concentration in the reboiler.Incomplete extraction: If the extraction process is not optimized, some of the salt may remain in the reboiler instead of being transferred to the extract. This will result in a higher concentration of salt in the reboiler.Poor mixing: If the reboiler is not properly mixed, the salt concentration will be higher in some areas than others, leading to an overall increase in the average concentration of salt in the reboiler.Know more about solid-liquid extraction
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how well does valence bond theory agree with the experimentally measured angle of 98.2
The unhybridized p orbital is anticipated to make a 90° angle with the plane, indicating strong agreement between valence bond theory and the actual angle of 93.3°.
Valence bond theory is one of two main theories in chemistry, along with molecular orbital theory, that were established to describe chemical bonding using quantum mechanics approaches. It focuses on how dissociated atoms' atomic orbitals interact to create individual chemical bonds when a molecule is formed. In contrast, orbitals in molecular orbital theory span the entire molecule.
A covalent bond is created between two atoms by the overlap of half-filled valence atomic orbitals of each atom having one unpaired electron, according to this hypothesis. A valence bond structure is comparable to a Lewis structure, however when writing a single Lewis structure is impossible, many valence bond structures are employed. Each of these VB structures corresponds to a different Lewis structure.
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EXPERIMENT 1: What was the initial temperature displayed on the thermometer before adding the NaOH to the HCl?
1. 26.5 ºc
2. 21.1 ºc
3. 21.105 ºc
4. 21.5 ºC
The temperature is an important factor to consider when performing experiments. In this particular experiment, you need to know the initial temperature displayed on the thermometer before adding sodium hydroxide (NaOH) to hydrochloric acid (HCl). The answer to this question is option 4: 21.5 °C.
To get the initial temperature, you need to measure the temperature of the solution before adding the NaOH to the HCl. This is done by reading the temperature displayed on the thermometer. In this experiment, the temperature on the thermometer before adding NaOH to HCl was 21.5 °C.
It is important to note that the temperature of the solution can change when substances are added. Therefore, it is important to record the initial temperature of the solution before adding any substances. This is why it is important to know the initial temperature displayed on the thermometer before adding NaOH to HCl. By recording the initial temperature, you can accurately compare the changes in temperature after adding substances to the solution.
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at which altitude can the ow regime be considered to roughly change between continuum and slip-ow?
The change between continuum and slip-flow regimes in atmospheric boundary layer can occur at an altitude of around 10 meters above the surface.
In the atmospheric boundary layer, the change from continuum to slip-flow regime occurs as the height above the surface increases to 10 meters. At this height, the atmospheric boundary layer is still considered to be in the continuum regime, but the influence of the roughness elements on the surface becomes significant, leading to a transition to the slip-flow regime.
This transition is an important consideration for atmospheric boundary layer modeling and for understanding the atmospheric boundary layer structure and turbulence.
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Choose the one best response for why you discard clean broken glassware, melting point capillaries, pipets or glass test tubes in the broken glass box and not in the regular trash can.
(a) Glassware may still contain chemicals that need to be disposed of properly.
(b) The stockroom cannot charge for broken glassware if it is discarded in the regular trash.
(c) Potential injuries could occur to the janitorial staff if the broken glassware is not seen.
The one best response for the discard clean broken glassware, melting point capillaries is the option (c) Potential injuries could occur to the janitorial staff if the broken glassware is not seen.
It is very danger to throw out the broken glassware away that has been in the touch with the chemical products in a regular garbage or the recycling containers. This is dangerous because of it can lead to the serious injuries if the worker that collects it from the trash and it is not aware of the presence of the broken glass in the garbage bin.
Thus, Potential injuries can occur to the janitorial staff if the broken glassware is not seen.
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Tin, Sn, is a soft white metal. It has a low melting point compared with other metals. Tin is widely used as a coating for cans of food. Which statement accurately describes atoms of tin?
Food cans frequently have tin coating on them. The fact that tin atom have 68 electrons is genuine.
What role do electrons play in atoms?The negative charge components of an atom are called electrons. The total potential difference of an atom's electrons counteracts the dipole moment of its protons in the elementary particle. When compared with all the other components of the atom, electron are quite tiny.
What are three electron-related facts?The negative charged particles known as electrons revolve around the outer edges of the nuclear. For scientists, it can be challenging to monitor them because of how quickly they spin. They are the tiniest particle in an atoms and are drawn to the neutrons' positive charge.
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50g of water were heated to boiling point at constant rate of 2.28KJ/minute.after boiling for 10minutes, the mass of water decreased to 40g calculate the heat of vaporization of water
Answer:
10g of water was vaporized by the 2.28K/J
at which temperature will hg l and hg s reach equilibrium
Temperature at which Hg (l) and Hg (s) reach equilibrium is 234 K.
Equilibrium temperature is defined as the condition under which two substances in physical contact with each other exchange no heat energy. Two substances are said to be in thermal equilibrium at the same temperature. A hypothetical water temperature at which the net heat flux is zero is defined as the Equilibrium water.
Temperature at which liquid Hg will convert to solid Hg at atmospheric pressure is melting point of Hg which is -39 C = -39 + 273 K = 234 K.
Hence, the equilibrium temperature of Hg is 234K.
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How many oxygen atoms are there in 0.20 mol of ethanoic acid, CH3COOH?
A. 1.2 x 1023
B. 2.4 x 1023
c. 3.0 x 1024
D. 6.0 x 1024
The number of the oxygen atoms are there in the 0.20 mol of the ethanoic acid, CH₃COOH is 2.4 × 10²³ atoms.
The number of the moles of the ethanoic acid = 0.20 mol
The formula of the ethanoic acid = CH₃COOH
The number of the oxygen atoms in the ethanoic acid = 2
The one mole of the substance = 6.022 × 10²³ atoms
The number of the oxygen atoms in the ethanoic acid is as :
The number of oxygen atom = 2 × 0.20 × 6.022 × 10²³ atoms
The number of the oxygen atom = 2.4 × 10²³ atoms.
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how much heat is released from a combustion reactoin of c6h6 when 13.5 grams of h20 product are created?
The heat that released from a combustion reaction of C₆H₆ when 13.5 grams of h20 product are created is -1588.7 KJ/mole
Heat is produced when kinetic energy moves within a material or an object, or when kinetic energy moves from an energy source to a material or an object. Such energy can be transported using three different mechanisms: radiation, conduction, and convection.
Heat energy is created by the movement of tiny atoms, molecules, or ions in solids, liquids, and gases. It is possible to transfer heat energy from one thing to another. Heat is a flow or transfer that happens when two objects have different temperatures from one another.
2C₆H₆ + 15O₂ → 12CO₂ + 6H₂O
2x49.04 2x10 12x-393.5 6x-285.8
= [ 12(-393.5 )+6(-285.8) ] - [ 2(49.04)+(2x10) ]
= - 6936.8 - 98
= - 6534.8 KJ/mole
we have 13.5 gram of water produce so,
moles water = mass/ mass molar = 13.5 g/ 18 g/moles = 0.75 moles
with unitary method we can find the moles of benzene
mole benzene = 2/6 x 0.75 = 0.25 moles
so the heat release of 0.25 moles of benzene is
= - 6534.8 KJ/mole x 0.25 moles = -1588.7 KJ/mole
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Determine the mass of iron(II) hydroxide produced if 279 g Fe and 733.6 g NiO(OH) react.
sum all the atomic mass of the constituent atoms
How do you compute a reaction’s molar mass?To determine the molar mass of a compound containing many atoms, add all of the constituent atoms’ atomic masses. For example, the molar mass of NaCl may be computed by first determining the atomic masses of sodium (22.99 g/mol) and chlorine (35.45 g/mol) and then combining them.
Multiply the atomic weight of each element (from the periodic table) by the number of atoms of that element in the compound. 3. Add everything together and include the units of grams/mole after the number. Many (but not all) difficulties can be solved by simply rounding the atomic weights and molar masses to the closest 0.1 g/mole.
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What are the 3 parts of the periodic table?
The 3 parts of the periodic table are metals on the left end, Non-metal on the right end, and metalloids lies between metals and non-metals.
Who was the sole creator of the periodic table?
While trying to categorize the elements in February 1869, Mendeleev discovered the existence of the periodic table, or Periodic System as he later termed it.
What does the present periodic table mean?The elements are given in the contemporary periodic table in increasing order of atomic number. The quantity of protons in an atom's nucleus is known as the atomic number. Proton count establishes an element's identification (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
Who and when introduced the present periodic table?Henry Moseley established the Modern Periodic Law & Table in 1913. Mendeleev was the first to classify all of the known elements, and he provided the law called the Mendeleev's periodic law.
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Assertion: A mixture of camphor and Ammonium chloride cannot be
separated by sublimation. Reason: Camphor on heating sublimes,
Ammonium chloride does not.
Both Assertion and Reason are true and Reason is correct explanation of the
Assertion.
Both Assertion and Reason are true but Reason is not the correct explanation of the
Assertion.
Assertion is true but Reason is false.
Assertion is false but Reason is true.
Based on the assertion and reasons given, it can be seen that the Assertion is true, but the reason is false.
Why is the Assertion true?Camphor and ammonium chloride are not separated because they are volatile substances. Hence assertion is true.
Camphor on heating sublimes, only when mixed with sodium chloride so the reason is false.
The bark and wood of the camphor tree were once used to make the chemical known as camphor.
Today, turpentine oil is typically used to make camphor. The fragrance of camphor is quite distinctive. It helps with symptoms like pain and itching by stimulating the nerves, it seems.
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question: what will be the volume of methylene blue and water required to make each of these dilutions? the molar mass of methylene blue is 319.85 g/mol.
Methylene blue's molar mass, however, is 319.85. Methylene blue can have a mass of 0.32g.
The stock solution's prepared molarity is 0.01 M.
100 mL is the prepared stock solution volume.
Taken methylene blue millimoles equal 0.01 x 100 or 1 mmol.
Taken methylene blue mass is equal to moles times molar mass (10-3 x 319.85 = 0.31985 g).
Methylene blue is 99.99% pure, which means that if we take 100g of the substance, it actually includes 99.99 g of the dye.
Therefore, a sample of methylene blue equal to 100g must be taken for 99.99 g.
The required methylene blue sample is equal to (100/99.99)x0.31985, or 0.319 g.
Taken methylene blue mass is 0.32 g.
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describe the location and light reflected on the moon throughout the month
Answer:
Explanation:
moonlight is sunlight that shines on the moon and bounces off
