Question

When 2.5 grams react, the will produce how many grams of reactant in a complete chemical reaction?

Answer 1

Answer:

2.5g

Explanation:

When the reaction goes into completion, they will produce 2.5g. This is complement the law of conservation of mass.

According to the law of conservation of mass "in a chemical reaction, matter is neither created nor destroyed but transformed from one form to another".

• The mass of reactants and products in a chemical reaction must be the same.
• There is no change in mass in moving from reactant to product
• So, if we start with 2.5g of reactants, we must end with 2.5g of products.