Question

Explain reactants
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Answer 1

Reactants are substances initially present in a chemical reaction that are consumed during the reaction to make products.

Answer 2

Answer:

a substance that takes part in and undergoes change during a reaction.

Explanation:

H2 (hydrogen gas) and O2 (oxygen gas) are reactants in the reaction that forms liquid water: 2 H2(g) + O2(g) → 2 H2O(l). ... There are four atoms of hydrogen in both the reactant and product side of the equation and two atoms of oxygen.