Question

1. according to the law of conservation, how many grams are in the product?

reactants
products

Explanation:

Step1: Apply the Law of Conservation of Mass

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. So, the mass of reactants equals the mass of products.

Step2: Calculate the mass of reactants

The mass of reactants is \(24 + 16=40\) g (from the given values in the left - hand side of the reaction).

Step3: Verify using the other reactant - product pair

For the other pair, \(25+8 = 33\) (this seems to be an incorrect or extra pair, but the main reaction \(2Mg+O_2
ightarrow 2MgO\) with masses \(24 + 16=40\) (reactants) and the product \(40\) (from \(2MgO\) side) follows the law.

Answer:

\(40\) g