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?

Question

1. 152 amu
2. 38 amu
3. 228 amu
4. 76 amu

Answer 1

In a chemical reaction, the law of conservation of mass states that the total mass of the reactants must be equal to the total mass of the products. Since the two molecules have a total mass of 76 amu, the mass of the single molecule that is formed must also be 76 amu.

Therefore, the answer is:

4. 76 amu