Science, Chemistry

10th -

12thgrade

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Chemical Equations and Reaction Types

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What observations could indicate a chemical reaction has taken place?

    A change in color.

    A change in temperature.

    The evolution of a gas.

    A change in odor.

    A change in shape.

  • 2. Multiple Choice
    30 seconds
    1 pt

    What type of chemical reaction would the following equation represent? 2H2 + N2 ↔ 2NH3

    Synthesis

    Decomposition

    Single replacement

    Double replacement

    Combustion

  • 3. Multiple Choice
    30 seconds
    1 pt

    Which type of reaction is represented by the following chemical equation? 2H2O2 → 2H2O + O2

    Synthesis

    Decomposition

    Single replacement

    Double replacement

    Combustion

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