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Chemical Equations

Quiz by Bryn Spangler

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15 questions
Show answers
  • Q1
    Which shape is used to represent that heat is required for the reaction to take place?
    circle
    square
    diamond
    triangle
    30s
  • Q2
    Which type of reaction involves one reactant breaking down into more than one products?
    synthesis
    decomposition
    combustion
    double replacement
    30s
  • Q3
    On which side of the arrow are the products written?
    above
    left
    right
    bottom
    30s
  • Q4
    What must you do to make sure the number of atoms in the reactants are equal to the number of atoms in the products?
    change subscripts to make the numbers equal
    add numbers after the formulas
    skip the problem because it makes no sense
    add numbers in front of the formulas
    30s
  • Q5
    Which type of reaction is AB + C --> AC + B
    double replacement
    synthesis
    decomposition
    single replacement
    30s
  • Q6
    True or false: It is possible to have only one reactant.
    False
    True
    30s
  • Q7
    A (g) in the chemical equation represents:
    giga
    gas
    gallium
    grams
    30s
  • Q8
    The term aqueous means:
    the substance is water
    the substance is dissolved in water
    the substance floats in water
    the substance is a liquid at room temperature
    30s
  • Q9
    Which of the following is a diatomic element
    nitrogen
    carbon
    sodium
    mercury
    30s
  • Q10
    Which of the following best represents a synthesis reaction?
    AB --> A +B
    A + B --> AB
    AB + CD --> AD + CB
    AB + C --> CB + A
    30s
  • Q11
    Which of the following must be a reactant in a combustion reaction?
    water
    chlorine
    oxygen
    methane
    30s
  • Q12
    What is a + used for in a chemical equation?
    to show that heat is needed for the reaction to occur
    to separate the reactants from the products
    to separate the reactants from one another or the products from one another
    to show which state of matter a substance is
    30s
  • Q13
    In an element is diatomic, there will be how many atoms?
    2
    3
    1
    4
    30s
  • Q14
    Law of Conservation of Mass: Matter is neither ____________ nor _________________.
    created, destroyed
    solid, gas
    red, blue
    large, small
    30s
  • Q15
    Reactants are best described as:
    the resulting substances from the reaction
    the substances left over from the reaction
    the substances entering into the reaction
    the substances not involved in the reaction
    30s

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