A silent mutation would have the LEAST effect in humans.
Any change in a cell's DNA sequence can be referred to as a mutation. Mutations can be caused by errors during cell division or by exposure to DNA-damaging agents in the environment. Such mutation inducing agents are termed as mutagens. Examples of mutagens include UV light, mustard gas, etc. Mutations can be harmful, beneficial, or inactive. A silent mutation occurs when a single DNA nucleotide change within a protein-coding portion of a gene has no effect on the sequence of amino acids that make up the gene's protein. That's because proteins are encoded by "triplets" of nucleotides, each of which is responsible for adding a specific amino acid to the protein chain. A single nucleotide change, on the other hand, does not always change the meaning of the triplet; the mutated triplet may still add the same amino acid. And, researchers reasoned, when a protein's amino acids remain constant, so does its structure and function. Although, single nucleotide addition or deletion can lead to frameshift mutations which are very much observable in the form of formation of an abnormal protein. A nonsense mutation occurs when the mutation results in generation of a stop codon.
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Answer for 50pt
what is the density of a liquid if a 25.0 ml sample of the liquid has a mass of 22.345
Answer:
The Density of the given liquid sample is 0.8938 g/cm³.
Density of any material is its [tex]\frac{Mass}{Volume}[/tex]
Here the Mass of the given liquid sample is 22.345 g.
The Volume of the given liquid sample is 25 ml = 25 cm³
Now the Density of the given liquid sample as per the above formula = [tex]\frac{22.345}{25} g/cm^{3}[/tex] = 0.8938 g/cm³.
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a compound containing xenon and fluorine was prepared by shining sunlight on a mixture of xe (0.618 g) and excess f2 gas. if you isolate 1.334 g of the new compound, what is its empirical formula? enter as xef, e.g. xef3
The empirical formula of the new compound is XeF2. This can be determined by calculating the number of moles of each element present in the compound.
The number of moles of Xe present is 0.618/131.293 = 0.0047 moles and the number of moles of F2 present is 1.334/37.997 = 0.035 moles.
Since the ratio of the number of moles of Xe to the number of moles of F2 is 0.0047/0.035 = 0.134, the empirical formula for the compound is XeF2.
The empirical formula is the simplest ratio of atoms in a compound that can represent its composition. It is derived by dividing the number of atoms of each element in a compound by the smallest number of atoms among them.
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At any given temperature, a ample of molecule ha a. The thermal energy ditribution plot ha the hape of Blank. The higher the temperature, the Blank. Becaue of Blank, a mall change in temperature reult in a large difference in the number of molecule having enough energy to urmount the activation barrier. Target 1 of 4target 2 of 4target 3 of 4target 4 of 4
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At any given temperature, a sample of molecules has a thermal energy distribution plot with a bell-shaped curve. The higher the temperature, the more spread out the curve is. Because of this, a small change in temperature results in a large difference in the number of molecules having enough energy to overcome the activation barrier.
About TemperatureTemperature is a measure of the level or degree of heat on an object. Temperature shows the level of the amount of heat energy that is in the object.
Discussion:
The higher the temperature of an object, the hotter it is, and the more heat energy is in that object. The tool for measuring temperature is a thermometer.
For example, hot water has more heat energy than cold ice.
Temperature is one of the basic quantities, which cannot be derived from other quantities. Temperature is measured in Kelvin (in the International System), but in everyday use the most common measurement is degrees Celsius (°C). For example, the temperature of freezing water is 0°C, the temperature of the human body is about 37.5°C and the temperature of boiling water is about 100°C.
The Kelvin scale has many scientific uses, such as calculating temperature and its change in an ideal gas. The kelvin is the SI unit for temperature, where 0 K is absolute zero (at which there is no movement of particles, which is equivalent to -273 °C.
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mrs. smith's class is doing an experiment with thermometers. they fill up a cup with boiling water and set it on the counter. they plan to check the temperature of the water in the cup after 5, 10, 15, and 30 minutes. what will mrs. smith's class observe about the temperature of the water after 30 minutes? responses a the temperature will increase first and then decrease.the temperature will increase first and then decrease. b the temperature of the water will decrease.the temperature of the water will decrease. c the temperature of the water will increase greatly.the temperature of the water will increase greatly. d the temperature of the water will stay the same.
The temperature of water after 30 minutes will decrease. The correct option to this question is B.
The thermometer may blow up if the temperature exceeds the permitted limit. Since boiling water is known to have a temperature in the range of 100 C, a standard clinical thermometer cannot be used to measure its temperature. Query: Laboratory Boiling water's temperature can be determined using thermometers.
A thermometer's operation is an illustration of how a liquid can be heated and cooled. The molecules of the liquid in the thermometer move more quickly when it is heated, which causes them to move somewhat farther apart. The thermometer moves upward as a result.
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nonpolar molecules that cluster away from water molecules are called molecules. group of answer choices hydrophilic contradictive hydrophobic ionic
Hydrophobic compounds are nonpolar molecules that tend to group away from water molecules.
Non-polar molecules that do not combine with water are known as hydrophobic molecules. As a polar molecule known as a hydrophilic molecule, water mixes with other polar molecules. Hydrophobic molecules include, for instance: Waxes. The 'hydrophilicity' of a molecule or surface refers to how much or how little it draws water. Sugar, salt, starch, and cellulose are a few of the most typical examples of hydrophilic compounds. A hydrophilic material is one that is particularly attracted to water, which it spreads throughout to make the most contact with. It arises from the fact that hydrophobic substances are naturally repellent to water, resulting in the formation of droplets.
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nitric, sulfuric, perchloric, and hydrochloric acids are all equally strong bronsted acids when measured as dilute solutions in water. what is the reason for this observation?
The reason nitric, sulfuric, perchloric, and hydrochloric acids are all equally strong Bronsted acids when measured as dilute solutions in water is because of their similar molecular structure.
All four acids contain a hydrogen ion (H+) and a negatively charged ion, such as nitrate (NO3-), sulfate (SO4-2), perchlorate (ClO4-), and chloride (Cl-). These negative ions all have a similar charge, which results in similar strength when measured as dilute solutions in water.
The strength of a Bronsted acid is measured by its acidity constant (Ka). The higher the Ka value, the stronger the acid. All four of these acids have a Ka value of approximately 10-2, which is why they are all equally strong Bronsted acids. This value is also why these acids are strong enough to be corrosive and cause damage to organic materials.
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what volume of 0.1500m kmno4 would be required to fully react with 1.000g of formic acid HCO2H in an acid solution?
The volume of 0.1500 M KMnO4 required to fully react with 1.000 g of formic acid in an acid solution is:
V(KMnO4) = n(KMnO4) / 0.1500 mol/L = n(KMnO4) / 0.1500 mol/L.
The balanced chemical equation for the reaction between formic acid (HCO2H) and potassium permanganate (KMnO4) is:
5 HCO2H (aq) + 2 KMnO4 (aq) → 2 CO2 (g) + 2 MnO2 (s) + 10 H2O (l)
Here's the complete calculation for the volume of potassium permanganate required to react with 1.000 g of formic acid:
First, we'll calculate the number of moles of formic acid:
n(HCO2H) = m(HCO2H) / M(HCO2H)
n(HCO2H) = 1.000 g / molecular weight of HCO2H
Next, we'll calculate the number of moles of potassium permanganate required to react with the formic acid:
n(KMnO4) = 5 * n(HCO2H)
Finally, we'll convert the number of moles of potassium permanganate to a volume using the molarity of the KMnO4 solution:
V(KMnO4) = n(KMnO4) / M(KMnO4) = n(KMnO4) / 0.1500 mol/L
So the volume of 0.1500 M KMnO4 required to fully react with 1.000 g of formic acid in an acid solution is:
V(KMnO4) = n(KMnO4) / 0.1500 mol/L = n(KMnO4) / 0.1500 mol/L.
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to make 500ml of a 250mm working solution (of a chemical with mw = 20g/mole) you would add g of the chemical to a 1 l graduate cylinder and then bring to volume of ml with ddh2o
To make 500ml of a 250mm working solution (of a chemical with MW = 20g/mole) we have to add 250g of the chemical to a 1 L graduated cylinder and bring to the volume of 500ml with [tex]ddH_2O[/tex].
As we know that the making a workable solution is identifying the required concentration of a substance in a particular volume and then figuring how much of the component to add to that volume.
To generate 500ml of a 250mM working solution of a chemical having a molecular weight of 20g/mol,
Mass of chemical = (concentration x volume x MW) / 1000ml
= (250mM x 500ml x 20g/mol) / 1000ml
= 250g
Hence, pour 250g of the chemical into a 1 L graduated cylinder and fill to 500ml with purified water.
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The given question is incorrect. The correct question is given as:
To make 500ml of a 250mm working solution (of a chemical with MW = 20g/mole) you would add _____ g of the chemical to a 1 L graduate cylinder and then bring to volume of _____ml with [tex]ddH_2O[/tex].
4. Identify the following nuclear changes as alpha decay or beta decay.
a. A radium atom with 88 protons and 138 neutrons
becomes a radon atom with 86 protons and 136
neutrons.
b. A sodium atom with 11 protons and 13 neutrons
becomes a magnesium atom with 12 protons and 12
The fact that radon is a gas and can enter basements through any cracks makes it a potential health risk. Radon decays into radioactive polonium (Z = 84) and has a half-life of 3.8 days.
For a nucleus containing 88 protons and 138 neutrons, what is the isotope notation?Ra-226 has a half-life of 1600 years, a significant difference from the other radioactive isotopes of radium that decay over a short period of time. It possesses 138 neutrons in its nucleus and 88 protons, which is equal to the number of electrons in its shells, giving it a mass number of 226.
How can half-life be resolved?A reaction's half-life is the amount of time needed for the reactant concentration to drop to half its initial value.
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A bar of Sam's coconut oil soap has a mass of 121 grams. The rectangular bar is 8 centimeters long, 5.5 centimeters wide, and 2.5 centimeters high. Calculate the density of Sam's coconut oil soap. Write your answer as a decimal.
The volume of the rectangular bar is the product of its dimensions that is 110 cm³. Then density of the bar weighing 121 g is 1.1 g/ cm³.
What is density ?Density of a substance is the measure of its mass per unit volume. It describes how closely its particles are packed within a given volume. It is the ratio of mass to the volume.
Volume of an object is the space occupied by the object. For a rectangle block, volume is the product of length, width and height.
Given, l = 8 cm
width = 5.5 cm
height h = 2.5 cm
volume = l w h = 8 cm ×5.5 cm × 2.5 cm = 110 cm³
Mass of the bar = 121 g
density = mass/ volume
d = 121 g/110 cm³
= 1.1g/cm³
Therefore, the density of rectangular bar is 1.1 g/cm³.
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what type of reaction is this? let me know asap pls
Answer:
The reaction of chlorine with cold sodium hydroxide solution is a *disproportionation reaction*
Explanation:
One atom is reduced because its oxidation state has decreased; the other is oxidized. This is a good example of disproportionation reaction in which a single substance is both oxidized and reduced.
Ethane (C2H6) reacts with oxygen (O2) to produce water and carbon dioxide (CO2). How many grams of carbon dioxide are produced when 294 grams of ethane are reacted
This equation tells us that for every 1 mole of C2H6, 2 moles of CO2 are produced. To find the number of moles of C2H6 in 294 grams, we need to use the molar mass of C2H6, which is 30.07 g/mol.
294 g C2H6 / 30.07 g/mol = 9.78 moles of C2H6
Since two moles of CO2 are produced for every one mole of C2H6, we can calculate the number of moles of CO2 by multiplying the number of moles of C2H6 by 2:
9.78 moles C2H6 x 2 moles CO2/1 mole C2H6 = 19.56 moles CO2
To find the number of grams of CO2, we need to use the molar mass of CO2, which is 44.01 g/mol
19.56 moles of CO2 x 44.01 g/mol = 864.8g CO2
So, 864.8 grams of carbon dioxide are produced when 294 grams of ethane are reacted.
a drug that opens sodium channels in a motor neuron would
Drugs that open sodium channels in motor neurons do this Depolarize the membrane.
Motor neurons are a special type of brain cells called neurons and are found in the spinal cord and brain. They are classified into her two main subtypes: upper motor neurons and lower motor neurons. Voltage-gated sodium channels play an important role in action potentials. When sufficient channels are opened by changes in the cell's membrane potential, a small but significant number of Na+ ions migrate into the cell along the electrochemical gradient, further depolarizing the cell. Drugs that open sodium channels in motor neurons depolarize the membrane. Depolarization occurs when positively charged sodium ions flow into neurons and open voltage-gated sodium channels.
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Part D
Next, you will gradually apply heat to the sugar and observe the effects. Your goal is to iden
at which sugar begins to melt. To get started, follow these steps. Then, answer the question
1. Pour 1 tablespoon of sugar into a cooking pan. Spread it out across the surface of the
the pan on a stove.
2. Because all stoves are different, you'll need to identify your low, medium, and high heat
before proceeding to step 3.
3. Use the method below to gradually heat the pan until you see the sugar begin to melt.
sugar melts, note how much time has elapsed and the final heat setting. If at any poi
begins to smoke, immediately turn off the heat source and remove the pan from the he
pan for these times and temperatures, stopping when the sugar begins to melt:
5 minutes on low heat
5 minutes on medium-low heat
5 minutes on medium heat
5 minutes on medium-high heat
5 minutes on high heat D
4. When the sugar melts, turn off the stove and remove the pan from the heat. A Do not to
When a large amount of heat is applied, the sugar melts faster than when a little amount of heat is applied.
What is melting?The term melting refers to the shattering of the bonds that hold a substance's molecules together. When a body is constantly heated, it melts.
The amount of heat utilized now influences how long it takes for the sugar to dissolve. In other words, when a large amount of heat is applied, the sugar melts faster than when a small amount of heat is applied.
When granulated sugar is slowly heated, it melts and turns golden brown. This is known as caramelization. The sugar must be melted in a heavy pan (not iron) at extremely low heat.
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which interaction is comparatively strongest if the interacting molecules are present in an aqueous solvent
Hydrophobic interactions are more powerful than other weak intermolecular forces. If the interacting molecules are in an aqueous solvent, the hydrophobic interaction is relatively strong.
An intermolecular forces is an attractive force that exists between the positive components (or protons) of one molecule and the negative components (or electrons) of another molecule. This force influences a substance's physical and chemical properties. The boiling point of a substance is proportional to the strength of its intermolecular forces; the stronger the intermolecular forces, the higher the boiling point.
We can compare the intermolecular forces of different substances by comparing their boiling points. This is because the heat absorbed by the substance at its boiling point is used to break these intermolecular forces and convert the liquid to vapor. Intermolecular forces are responsible for the majority of matter's physical and chemical properties.
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what are the essential ingredients of a symmetric cipher?
A symmetric cipher typically has the following essential ingredients: key, plaintext, encryption algorithm, decryption algorithm.
A key: A secret value shared between the sender and the receiver that is used to encrypt and decrypt the message.
A plaintext: The original, unencrypted message.
An encryption algorithm: A mathematical function that takes the plaintext and the key and produces an encrypted message (ciphertext).
A decryption algorithm: A mathematical function that takes the ciphertext and the key and produces the original plaintext.
A method for securely sharing the key between the sender and receiver, as the security of a symmetric cipher relies on the secrecy of the key.
Note: The exact ingredients may vary depending on the specific symmetric cipher being used.
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2. which will have a higher rf on a tlc plate, (±)-benzoin or (±)-hydrobenzoin
(±)-benzoin having a higher Rf value on TLC plate as compared to (±)-hydrobenzoin. Rf value of benzoin will be 0.844 and the Rf value of hydrobenzoin will be 0.62.
Thin layer chromatography: TLC is the technique which is used to identify the compounds as well as their purity levels. It is compared with column chromatography, TLC will requires less amounts of the compound and can be done much faster.
TLC analysis will provides a means to separate the structures which are present in the sample that was spotted as well as measure the retention factor to compare amongst the other samples. By spotting the plates as they were, plate one can compare the starting material to the recrystallized product and plate two can compare the starting material to the crude product.
The spots that share the Rf factor of 0.844 will be identified as benzoin as well as the second spot can be matched by the recrystallized product.
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Which is the most effective way to decrease water pollution?
A: Pass laws controlling the number of fish that can be caught in the oceans
B: Pass laws regulating what factories can emit into the air and pour out onto the ground
C: Convert forests into farmland
D: Convert wild habitats into parklands and zoos
Pass laws regulating what factories can emit into the air and pour out onto the ground can reduce the water pollution up to a limit. The main cause of water pollution is remnants from factory outlets.
What is water contamination ?Water bodies are getting polluted through many ways. It is become very serious issue today since drinking water is getting embodied with toxic substances.
The causes of this scenario include wastes deposition from industries and factories, poor sewage treatments, wastes from ships, cattle washing etc. These human activities make our water bodies contaminated by hazardous pollutants.
Strict laws must be enacted to regulate these actions especially emission from factories can reduce the level of water pollution up to a limit. Therefore, option B is the effective way.
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which piece of evidence best supports charles's law?
Answer:
Charles's Law states that the volume of a gas is directly proportional to its temperature, when pressure is constant. Therefore, the best piece of evidence to support Charles's Law would be an experiment that demonstrates a direct relationship between the volume of a gas and its temperature under constant pressure conditions. This experiment could involve measuring the volume of a gas at different temperatures and showing that as the temperature increases, the volume of the gas also increases, and vice versa.
An example of experiment that supports Charles's Law is measuring the volume of a gas at a fixed pressure inside a container and heating the gas. As the temperature rises, the volume of the gas increases, and when the container cooled down the volume decreases.
It's important to note that Charles's Law is one of the ideal gas laws, which assumes that the gases are perfect and behave in a certain way. In reality, gases can deviate from the predictions of the ideal gas laws depending on the nature of the gas and the conditions under which it is measured
The most compelling evidence supporting Charles's Law is the balloon experiment. This experiment shows that as the temperature of gas increases, so does its volume, as long as the pressure is constant. This law is used in real-life applications, like hot air balloons.
Explanation:One of the most compelling pieces of evidence that supports Charles's Law is the balloon experiment. In this experiment, a balloon filled with air is heated, and it can be observed that as the temperature of the gas (air in this case) increases, the volume of the balloon also increases. This demonstrates that the volume of a specific amount of gas is directly proportional to its temperature, assuming the pressure stays constant, as stated in Charles's Law. This indicates the predictability and reliability of Charles's Law in actual applications, like how hot air balloons work.
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what is amajor disturbance that caused the ecosystem to stabilize at a new equilibrium.
Fires, landslides, flooding, windstorms, and insect and pest outbreaks were among the major ecological disturbances that caused the ecosystem to stabilize at a new equilibrium.
What does it mean when an ecosystem reaches a new equilibrium?An ecosystem is said to have ecological stability (or equilibrium) if it can return to its equilibrium state after a perturbation (a capacity known as resilience) or if it does not experience unexpected large changes in its characteristics over time.Natural ecosystems are frequently extremely sensitive to change, such as the introduction or extinction of a species. A healthy ecosystem is said to be in equilibrium, a relatively stable state in which population sizes remain within a sustainable range (not too many of a certain species alive or dead).Ecosystems must have the right balance of non-living elements such as sunlight and water. To maintain equilibrium, they must have the proper balance of different species.To learn more about equilibrium refer to :
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calculate the percent by mass composition of chlorine in a compound with 1 chromium atom and 3 chlorine atoms
The percent by mass composition of chlorine in a compound with 1 chromium atom and 3 chlorine atoms will be 67.74% chlorine by mass.
The percent by mass composition of an element in a compound is calculated as follows:
Percent by mass = (mass of element / total mass of compound) × 100%
Let's assume the atomic masses of chromium and chlorine are 51 and 35.5 g/mole, respectively. The formula mass of the compound would be (1 × 51 g/mole) + (3 × 35.5 g/mole) = 51 + 106.5 = 157.5 g/mol.
The mass of chlorine in the compound would be (3 × 35.5 g/mole) = 106.5 g/mol.
Therefore, the percent by mass composition of chlorine in the compound is:
Percent by mass of chlorine = (mass of chlorine / total mass of compound) × 100%
= (106.5 g/mole / 157.5 g/mole) × 100%
= 67.74%
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when carbon dioxide in the atmosphere dissolves with the raindrops, what is the expected change in ph of the raindrops?
When carbon dioxide in the atmosphere dissolves with the raindrops, it causes the pH to decrease.
How does CO2 affect pH in water?Carbon dioxide influences the pH of water. The more CO2 in water, the lower pH will be. When CO2 is dissolved in raindrops, it reacts with water to become carbonic acid.
Carbonic acid is formed by the following equation
CO2 + H2O —> H2CO3
Carbonic acid is also capable to dissociate into hydrogen ions and carbonate ions. Releasing of hydrogen ions lowers the pH to around 5.65. Even though is acidic, it can not be considered acid rain.
Thus, the reaction of the raindrops with CO2 lowers the pH.
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table salt (nacl) has i = 2 because there are two ions per every sodium chloride formula unit. what is the van't hoff factor for cabr2?
Since CaBr2 dissolves in water to form two ions (Ca2+ and Br-), the Van't Hoff factor is 2.
When a solute (a substance that is dissolved) is evenly distributed in a solvent (a substance that dissolves the solute), a homogeneous mixture known as a solution is created. A liquid, gas, or supercritical fluid can serve as the solvent, and a solid, liquid, or gas can serve as the solute. When a solute dissolves in a solvent, the heat energy displaces the attractive interactions between the solvent molecules, allowing the solute particles to split and disperse uniformly throughout the solvent. A solute's capacity to dissolve in a solvent is influenced by a number of variables, including the solute's concentration, solvent type, temperature, and pressure.Sometimes, the solute particles can create new chemical compounds.
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Red gold i a gold-copper alloy ued to make jewelry. A piece of jewelry made of red gold weigh 9. 21 g and ha a volume of 0. 559 cm'. Gold ha a denity of 19. 3 g/em' and copper ha a denity of 8. 96 g/cm?. Calculate the percentage by ma of each metal in the jewelry. Aume the total volume of the jewelry i the um of the volume of the two metal it contain
Red gold is a gold-copper alloy that is commonly used to make jewelry. To calculate the percentage by mass of each metal in the jewelry, you need to determine the mass of gold and copper in the jewelry. The mass of gold can be calculated using the density of gold and the volume of gold in the jewelry:
mass of gold = density of gold * volume of gold
mass of gold = 19.3 g/cm³ * 0.559 cm³
mass of gold = 10.8 g
The mass of copper can be calculated using the density of copper and the volume of copper in the jewelry:
mass of copper = density of copper * volume of copper
mass of copper = 8.96 g/cm³ * (0.559 cm³ - 0.559 cm³)
mass of copper = 0 g
The total mass of the jewelry is 10.8 g + 0 g = 10.8 g.
Therefore, the percentage by mass of gold in the jewelry is 10.8 g/10.8 g = 100%. The percentage by mass of copper in the jewelry is 0 g/10.8 g = 0%.
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There are many compounds composed of nitrogen and oxygen compare the formulas for nitrogen monoxide and nitrogen dioxide
The chemical formula for nitrogen monoxide (NO) is one nitrogen atom (N) and one oxygen atom (O) bonded together. The chemical formula for nitrogen dioxide (NO2) is one nitrogen atom (N) and two oxygen atoms (O2) bonded together.
In summary, the difference between the two formulas is the number of oxygen atoms present. Nitrogen monoxide has one oxygen atom and Nitrogen dioxide has two oxygen atoms.
The chemical formulas for nitrogen monoxide and nitrogen dioxide are:
Nitrogen monoxide: NONitrogen dioxide: [tex]NO_2[/tex]As we can see, the main difference between these two compounds is the number of oxygen atoms. Nitrogen monoxide has only one oxygen atom, while nitrogen dioxide has two. The subscript "2" in NO2 indicates that there are two oxygen atoms in the molecule.
What is Chemical formula?A chemical formula uses symbols and numbers to denote the different kinds and quantities of atoms that make up a molecule to express the chemical composition of a substance. It gives details on both the composition of the compound's constituent parts and their relative amounts in the molecule.
For instance, water has the chemical formula H2O, which denotes that it is composed of two hydrogen atoms and one oxygen atom.
Therefore, the chemical formulas for nitrogen monoxide and nitrogen dioxide are:
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what is the molarity of an naoh solution if 48.0 ml is needed to neutralize 35.0 ml of 0.144 m h2so4? (pg. 137)
The molarity of an NaOH solution if 48.0 ml is needed to neutralize 35.0 ml of 0.144 m H₂SO₄ is 0.105 M.
What is molarity ?The molarity of a solution is a common term to express its concentration. Molarity of a solution is the ratio of its number of moles of solute to the volume of solution in liters.
If M1 and V1 be the molarity and volume of a solution, then M2 and V2 be the molarity and volume of another solution reacting completely with the first one. Then,
M1 V1 = M2 V2.
Given, volume of NaOH V1 = 48 ml
volume of H₂SO₄ V2= 35 ml
molarity of H₂SO₄ M2 = 0.144 M
Then, M1 = M2 V2/V1
M1 = (35 ml × 0.144 M) /48 ml = 0.105 M.
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3.00×1017 positively charged hydrogen ions pass a point in 5.00 seconds. what is the current in amps?
The 3.00 × 10¹⁷ positively charged hydrogen ions are pass the point in 5.00 seconds. The current in amps is 9.6 × 10⁻³ amp.
The positively charged hydrogen ions = 3.00 × 10¹⁷
The current is expressed as follows :
Q = It
I = Q / t
where ,
The t = the time = 5 sec
Q = the total charge = 1.6 × 10 ⁻¹⁹ × 3 × 10¹⁷
Q = 4.8 × 10⁻²
I = 4.8 × 10⁻² / 5
I = 9.6 × 10⁻³ amp
Thus, the current in ampere is 9.6 × 10⁻³ amp.
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The hh genotype gives rise to:
Please select the single best answer
H substance
H secretors
Bombay phenotype
h antibodies
The hh genotype gives rise to the Bombay phenotype.
The Bombay phenotype, also known as the hh phenotype, is a genetic condition that results from a specific combination of alleles at the H blood group locus. People with the Bombay phenotype have a genotype of hh, meaning they do not produce the H antigen on their red blood cells. This can have significant implications for blood transfusions, as the lack of H antigen on the surface of red blood cells can cause a potentially life-threatening reaction when transfused with blood from someone who is an H antigen secreter (i.e., has an HH or Hh genotype).
Therefore, the hh genotype gives rise to the Bombay phenotype, characterized by the absence of the H antigen on red blood cells.
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molecules that contain only carbon and hydrogen are group of answer choices hydrocarbons inorganic carbons exist only as linear chains hydrated carbons
Option (a) is correct. Molecules that contain only carbon and hydrogen are called Hydrocarbons.
Hydrocarbons are defined as the organic compounds which contain only carbon and hydrogen. There are four general classes of hydrocarbons. These are alkanes, alkenes, alkynes and arenes. Coal, petroleum, natural gas and tar are examples of hydrocarbons. These are used as energy sources. Combustion of the hydrocarbons is the main source of the energy of the world. These are the examples of group 14 hydrides. Hydrocarbons are colorless and hydrophobic. There are three types of hydrocarbons. Those are saturated hydrocarbon, unsaturated hydrocarbon and aromatic hydrocarbon.
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The complete question is,
Molecules that contain only carbon and hydrogen are called____.
group of answer choices
(a) hydrocarbons
(b) inorganic carbons
(c) exist only as linear chains
(d) hydrated carbons
how does the addition of thermal energy relate to the molecules inna substance
Answer:
Its will particles move faster and its temperature will rises more.
Explanation:
