Law of Conservation of Matter
a year ago
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10 QuestionsShow answers
  • Question 1
    30 seconds
    Q. Which side of a chemical equation is the reactant side?
    answer choices
    Left (before the yields sign)
    Right (after the yields sign)
  • Question 2
    30 seconds
    Q. Which side of a chemical equation os the product side?
    answer choices
    Left (before the yields sign)
    Right (after the yields sign)
  • Question 3
    30 seconds
    Q. What is a coefficient?
    answer choices
    The small number on the right of the chemical symbol.
    The large number to the left of a formula.
  • Question 4
    60 seconds
    Q. Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
    answer choices
    Yes
    No
  • Question 5
    60 seconds
    Q. Balance this equation:
    MgCl2 --> Mg4+ Cl2
    answer choices
    It's already balanced.
    4MgCl2 --> Mg4+ 4Cl2
    4MgCl2 --> Mg4+ 5Cl2
  • Question 6
    60 seconds
    Q. Balance this equation:
     2Li + Cl2 -> LiCl
    answer choices
    2Li + Cl2 -> 4LiCl2
    2Li + Cl2 -> LiCl2
    2Li + Cl2 -> 2LiCl
  • Question 7
    180 seconds
    Q. Balance this equation
    _N+ _H--> _NH3
    answer choices
    1,2,3
    1,3,2
    1,1,2
    2,1,1
  • Question 8
    30 seconds
    Q. What is the arrow in a chemical equation...
    H2 + O --> H2O
    answer choices
    Reactants
    Products 
    Yields 
    Chemical Equation 
  • Question 9
    60 seconds
    Q. How many atoms of aluminum are on each side of the following equation: 4Al + 3O--> 2AlO3
    answer choices
    2
    6
    1
    4
  • Question 10
    30 seconds
    Q. Read the following chemical formula: C6H12O6. How many hydrogen atoms are in the formula?
    answer choices
    12
    6
    4
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