Physics, 31.01.2020 00:49 linda3025

Which best describes the law of conservation of mass?

a: the coefficients in front of the chemicals in the reactants should be based on the physical state of the products.
b: products in the form of gases are not considered a part of the total mass change from reactants to products.
c: when reactants contain both a solid and a liquid, the solid counts toward the overall mass and the liquid does not.
d: the mass of the reactants and products is equal and is not dependent on the physical state of the substances.

Answers: 3

Show answers

Answers

Answer from: EmilySerna

Option (D) is the correct answer.

Explanation:

Law of conservation of mass states that mass of reactant species will always be equal to the mass of product species. As mass can neither be created nor it can be destroyed but it can only be transformed from one place to another.

Also, mass does not on the physical state of both reactants or products.

For example, $Na(s) + Cl_{2}(g) \rightarrow NaCl(s)$

Mass of reactants will be as follows.

Mass of sodium = 23 g/mol

Mass of chlorine = 35 g/mol

Total mass of reactants = (23 + 35) g/mol = 58 g/mol

On the other hand, mass of product will be as follows.

Mass of NaCl = mass of sodium + mass of chlorine

= (23 + 35) g/mol

= 58 g/mol

Thus, we can conclude that the mass of the reactants and products is equal and is not dependent on the physical state of the substances.

Answer from: prelogical

Option (D) is the correct answer.

Explanation:

Also, mass does not on the physical state of both reactants or products.

For example, $Na(s) + Cl_{2}(g) \rightarrow NaCl(s)$

Mass of reactants will be as follows.

Mass of sodium = 23 g/mol

Mass of chlorine = 35 g/mol

Total mass of reactants = (23 + 35) g/mol = 58 g/mol

On the other hand, mass of product will be as follows.

Mass of NaCl = mass of sodium + mass of chlorine

= (23 + 35) g/mol

= 58 g/mol

Thus, we can conclude that the mass of the reactants and products is equal and is not dependent on the physical state of the substances.

Answer from: Quest

Ithink it’s cancer risk

Answer from: Quest

Are there options for this?

Another question on Physics

Physics, 22.06.2019 19:40

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.

Answers: 2

Answer

Physics, 23.06.2019 08:30

Aforce or 500 n separates two objects the distance between their centers is 67 m the first object has a mass of 20kg what is the mass of the second

Answers: 1

Answer

Physics, 23.06.2019 10:00

What is transferred to an object when work is done

Answers: 2

Answer

Physics, 23.06.2019 20:00

Which choice represents a pair of resonance structures? note that lone pairs have been omitted for clarity. view available hint(s) which choice represents a pair of resonance structures? note that lone pairs have been omitted for clarity. o=n−f and n=o−f o=o and f−f n≡c− and n≡c−h o−n=o and o=n−o?

Answers: 3

Answer

You know the right answer?

Which best describes the law of conservation of mass?

a: the coefficients in front of...

Questions