How does a balanced chemical equation demonstrate the Law of Conservation of Mass?(1 point)
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
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.
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
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.
The correct response is:
- It shows that no atoms have been gained or lost during the reaction.
A balanced chemical equation demonstrates the Law of Conservation of Mass by ensuring that the number of atoms on both sides of the equation remains the same. This means that no atoms are created or destroyed in a chemical reaction. To balance a chemical equation, you need to adjust the coefficients in front of the reactants and products so that the number of atoms of each element on the left side of the equation equals the number of atoms of the same element on the right side. By doing this, you're showing that the total mass of the reactants is equal to the total mass of the products, supporting the Law of Conservation of Mass.