Question

A reaction begins with 130.5g of substance X and substance Y. How many grams of

substance X and Y are there at the end of the reaction?

A) not enough information provided
B) 100g
C) 65.25g
D) 130.5g

Answer 1

130.5g

Step-by-step explanation:

At the of the reaction, the combined mass of X and Y will be 130.5g.

The premise for this conclusion is based on the law of conservation of matter.

This law states that "in a chemical reaction, matter is neither created nor destroyed but changed from one form to another".

In essence, in a chemical reaction, there is no mass loss.

• The amount of product in the reaction is expected to be the same as the amount of reactants used in the experiment.
• When we start with 130.5g then we should end with 130.5g