Answer:
B. Hydrogen and oxygen molecules
General Formulas and Concepts:
Chemistry - Reactions
- Reactants are always on the left side of the arrow
- Products are always on the right side of the arrow
Explanation:
Step 1: Define
Reaction RxN: 2H₂ + O₂ → 2H₂O
Step 2: Identify
Reactants: H₂ and O₂
Products: H₂O
