Chemical Reactions: Are You a Master?

AI-generated quiz: Chemical Reactions: Are You a Master?

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Total Questions
25
Published
May 21, 2026
Source Type
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chemistry
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reactions
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  1. 1

    Which of the following is NOT a characteristic that indicates a chemical reaction has taken place?

    • AChange in state
    • BChange in color
    • CEvolution of a gas
    • DChange in mass
  2. 2

    In the reaction: 2Mg + O2 → 2MgO, which substance is oxidized?

    • AMagnesium (Mg)
    • BOxygen (O2)
    • CMagnesium Oxide (MgO)
    • DNone of the above
  3. 3

    What type of reaction is represented by the following equation: CaCO3(s) → CaO(s) + CO2(g)?

    • ACombination reaction
    • BDecomposition reaction
    • CDisplacement reaction
    • DDouble displacement reaction
  4. 4

    Which of the following statements is true regarding exothermic reactions?

    • AThey absorb heat from the surroundings.
    • BThey release heat into the surroundings.
    • CThey result in a decrease in temperature.
    • DThey require a catalyst to proceed.
  5. 5

    In a double displacement reaction, what is the driving force that causes the reaction to occur?

    • AFormation of a gas
    • BFormation of water
    • CFormation of a precipitate
    • DAll of the above