How does a balanced chemical equation demonstrate the Law of Conservation of Mass?(1 point)

Question

Responses

it shows that only physical changes follow the Law of Conservation of Mass
it shows that only physical changes follow the Law of Conservation of Mass

it shows that the properties of the elements stay the same after the reaction
it shows that the properties of the elements stay the same after the reaction

it shows that all compounds remain bonded after the reaction
it shows that all compounds remain bonded after the reaction

it shows that no atoms have been gained or lost during the reaction

Answer 1

A balanced chemical equation demonstrates the Law of Conservation of Mass because:

it shows that no atoms have been gained or lost during the reaction

In a balanced chemical equation, the number of atoms of each element is the same on both the reactant side and the product side. This illustrates that matter is neither created nor destroyed in the chemical reaction, aligning with the Law of Conservation of Mass.

Answer 2

Sodium reacts with chlorine to form the compound sodium chloride, or salt. The chemical formula below shows how the two elements combine into a compound.

2Na + Cl2 → 2NaCl

If the total mass of the reactants is 58.44 amu, what will be the total mass of the products?

(1 point)
Responses

29.22 amu
29.22 amu

116.88 amu
116.88 amu

60 amu
60 amu

58.44 amu

Answer 3

58.44 amu

According to the Law of Conservation of Mass, the mass of the reactants in a chemical reaction must equal the mass of the products. Since the mass of the reactants is given as 58.44 amu, the total mass of the products after the reaction will also be 58.44 amu, because no mass is lost or gained in the reaction.