Product Chemistry Example 3

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Example 3

medium
In the reaction 2H2+O2→2H2O2\text{H}_2 + \text{O}_2 \to 2\text{H}_2\text{O}, identify the reactants and products.

Solution

  1. 1
    In a chemical equation, substances on the **left** side of the arrow are the **reactants** (starting materials).
  2. 2
    Substances on the **right** side of the arrow are the **products** (newly formed substances).
  3. 3
    Reactants: H2\text{H}_2 (hydrogen gas) and O2\text{O}_2 (oxygen gas). Product: H2O\text{H}_2\text{O} (water). The coefficients 2H22\text{H}_2, 1O21\text{O}_2, and 2H2O2\text{H}_2\text{O} indicate the mole ratios, not different substances.

Answer

Reactants: H2\text{H}_2 and O2\text{O}_2. Product: H2O\text{H}_2\text{O} (water).
The arrow in a chemical equation separates reactants (left) from products (right). This reaction is the combustion of hydrogen gas, producing water. The balanced equation shows that 2 moles of H2\text{H}_2 react with 1 mole of O2\text{O}_2 to form 2 moles of H2O\text{H}_2\text{O}.

About Product

A product is a substance that is formed as the result of a chemical reaction.

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