Question

two reactants X and Y , are combined and form a new substance with a mass of 375g. the mass of reactant X is 300 g. what is the mass of reactant Y?

Answer 1

75g

Step-by-step explanation:

Given parameters

Mass of product = 375g

Mass of reactant X = 300g

Unknown:

Mass of reactant Y = ?

Solution:

To solve this problem, we need to understand the law of conservation of mass. The law states that "matter is neither created nor destroyed in a chemical reaction".

So;

Mass of X + Mass of Y = Mass of product

Mass of Y = Mass of product - Mass of X

Mass of Y = 375 - 300 = 75g