Question

in a chemical reaction, two molecules with a total mass of 76 amu react to form a single molecule. what is the mass of the molecule that is formed? (1 point)
228 amu
76 amu
152 amu
38 amu

Explanation:

Step1: Apply the law of conservation of mass

In a chemical reaction, mass is conserved. The total mass of reactants equals the total mass of products.
$$\text{Mass of reactants}=\text{Mass of products}$$

Step2: Substitute the given mass of reactants

Given the total mass of reactants (two molecules) is \(76\) amu. Let \(m\) be the mass of the product (single molecule). Then \(m = 76\) amu.

Answer:

76 amu