Boyle's law deals what quantities?

Answers

Answer 1

Answer: Boyle's Law deals with pressure and volume: P1V1 = P2V2 where pressure and volume will have an inverse relationship

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A potassium atom (atomic number 19) and a bromine atom (atomic number 35) can form a chemical bond through a transfer of one electron. The potassium ion that forms has 18 electrons. What best describes the bromide ion that forms?

Answers

Answer:

C. It is a negative ion that has one more valence electron than a neutral bromine atom.

Explanation:

took test

It may have twice as much electrons a the potassium ion.

How does the Law of Conservation of Mass relate to changes in physical state? How does it relate to chemical changes?

Answers

The Law of Conservation of Mass states that matter cannot be created nor destroyed. It can only be transformed from one state or substance to another. This means that this law applies to both physical and chemical changes. In physical changes, the substance before and after the phase change still has the same mass. In chemical changes, the mass of reactants will always have the same mass of products and by-products.

Which subatomic particle is not found in the nucleus of an atom

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Only subatomic particle NOT found in the nucleus

would be Electrons

Calculate the number of moles of bromobenzene, magnesium, and benzophenone that you will use in this experiment. You will need to look up the molecular weights of each substance and the density of bro. A) Bromobenzene B) Magnesium C) Benzophenone D) None of the above

Answers

Final answer:

To calculate the number of moles in an experiment, you need to know the mass of the substance and its molecular weight. The number of moles is then found by dividing the mass by the molecular weight. This applies to any substance, including bromobenzene, magnesium, and benzophenone.

Explanation:

To calculate the number of moles of bromobenzene, magnesium, and benzophenone you will use in the experiment, we first need the molecular weights of each substance. The molecular weights determined from experimental data are crucial to this calculation. The number of moles of a compound is equal to the mass of the compound divided by its molecular mass. For example, if we consider a substance like benzene, the molecular formula is C6H6 which is derived from its empirical formula CH, and the ratio of the elements within it. Let's say you have 'm' grams of bromobenzene, 'n' grams of magnesium, and 'p' grams of benzophenone. Also, let the molecular weights of bromobenzene, magnesium, and benzophenone be 'M', 'N', and 'P' respectively. Then the number of moles of bromobenzene would be m/M, of magnesium would be n/N, and of benzophenone would be p/P. To get the exact values, you would need the specific weights of these substances in your experiment. Remember to ensure that the weights are in grams (for mass) and g/mol (for molecular weight) since the number of moles is a dimensionless quantity.

Learn more about calculating moles here:

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What would happen if you didn't have chemical energy in your body

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According to law of thermodynamics, energy can neither be created nor can be destroyed. It can be converted from one from one form to another.

Hence, the food that we eat is a source of energy. The chemical energy stored in food, is utilized for various function of body such as breathing, walking, talking, etc. Now, if you body does not have chemical energy, if will not be able to perform various task, which are essential for living.

Due to this, absence of chemical energy in the body, can will eventually lead to death.

If you body does not have chemical energy it will slowly shut down due to its metabolism not being able to intake more food and water. This will eventually lead to death.

The pigment which determines skin color is .

Answers

The pigment which determines skin color is Melanin

melanin , as far as I know

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