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Ch8.3/8.4 Chemical reactions

Quiz by Alison Tandy

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10 questions
Show answers
  • Q1
    The substances you begin with in a chemical reaction are:
    Reactants
    Products
    30s
  • Q2
    In this word equation, what are the reactants? oxygen + iron --> iron oxide
    iron and iron oxide
    iron oxide
    oxygen and iron
    oxygen and iron oxide
    30s
  • Q3
    The substances you end with in a chemical reaction are called:
    Products
    Reactants
    30s
  • Q4
    In this word equation, what are the products? oxygen + iron --> iron oxide
    iron and iron oxide
    oxygen and iron oxide
    iron oxide
    oxygen and iron
    30s
  • Q5
    What is the correct word equation for magnesium reacting in hydrochloric acid to release bubbles of hydrogen gas in magnesium chloride?
    magnesium + hydrogen gas --> hydrochloric acid + magnesium chloride
    magnesium + hydrochloric acid --> hydrogen gas + magnesium chloride
    hydrogen gas + magnesium chloride --> magnesium + hydrochloric acid
    30s
  • Q6
    What is meant by 'reaction rate'?
    The quantity of a product given by a reaction
    The quantity of reactants used to make a reaction
    The speed of a reaction
    30s
  • Q7
    A substance that speeds up a reaction but is not used up or changed in the reaction is called a:
    product
    reactant
    catalyst
    30s
  • Q8
    When a catalyst is made by a living thing to speed up digestion, it is called:
    a reactant
    a biologist
    an enzyme
    30s
  • Q9
    Which of the following actions will speed up the rate of reaction?
    increasing the quantity or surface area of reactants
    removing a catalyst
    cooling it down
    30s
  • Q10
    Which of the following actions will slow down the rate of reaction?
    Adding a catalyst
    Increasing the quantity or surface area of reactants
    Cooling it
    30s

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