Question

You are performing an experiment in the lab and have Reactant A and Reactant B. The total mass of

Answer 1

Answer:

The corect answer is some of the reactants were spilled.

Explanation:

Before the initiation of the reaction the total mass of both reactants is 15.0 grams and after the reaction the net mass of product is  grams 12.4grams.

     This happens because during the reaction some reactant molecules were spilled which ultimately leads to decrease the mass of the reactant molecule.

    The decrease in the amount of the reactant  equals with amount of product formed.