Balancing Equations
2 years ago
lbaiton
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15 QuestionsShow answers
  • Question 1
    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 2
    30 seconds
    Q. Which side of a chemical equation is the product side?
    answer choices
    Left (before the arrow)
    Right (after the arrow)
  • Question 3
    30 seconds
    Q. Which side of a chemical equation is the reactant side?
    answer choices
    Left (before the arrow)
    Right (after the arrow)
  • Question 4
    60 seconds
    Q. Which problem is balanced?
    answer choices
    PbO2 + 2H2
    SO2 + H20 --> H2SO4
    2Na + 2H2O --> 2NaOH + H2
  • Question 5
    60 seconds
    Q. Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
    answer choices
    Yes
    No
  • Question 6
    30 seconds
    Q. What is the little number after an element in a chemical equation called.
    Example: H2
    answer choices
    Coefficient 
    Subscript
    Atom
    Equation
  • Question 7
    30 seconds
    Q. What is the arrow in a chemical equation...
    H2 + O --> H2O
    answer choices
    Reactants
    Products 
    Produces
    Chemical Equation 
  • Question 8
    180 seconds
    Q. Balance this equation
    _Zn+_HCl-->_ZnCl+_H2
    answer choices
    1,1,2,1
    1,1,1,2
    1,2,1,1
    2,1,1,1
  • Question 9
    180 seconds
    Q. Balance this equation.
    _Mg + _Cl--> _MgCl2
    answer choices
    1, 2,1
    already balanced
    2,1,1
    1,1,2
  • Question 10
    30 seconds
    Q. What does the Law of Conservation of Mass state?
    answer choices
    Matter cannot be gained or lost in a chemical reaction.
    Matter can only be lost in a chemical reaction.
    Matter can only be gained in a chemical reaction.
    Matter can be gained and lost in a chemical reaction. 
  • Question 11
    30 seconds
    Q. Is this balanced?...
    Fe + S --> FeS
    answer choices
    YES!
    NO!
  • Question 12
    30 seconds
    Q. KNO3 --> KNO2 + O2
    What coefficients are needed to balance the reaction?
    answer choices
    2, 2, 1
    2, 3, 2
    1, 2, 2
    1, 3, 1
  • Question 13
    180 seconds
    Q. Balance this equation-
    __P+ __O--> __P2O3
    answer choices
    it is already balanced
    2, 1, 3
    1, 2, 3
    1, 3, 2
  • Question 14
    180 seconds
    Q. Balance this equation.
    _Mg + _Cl--> _MgCl2
    answer choices
    1, 2,1
    already balanced
    2,1,1
    1,1,2
  • Question 15
    180 seconds
    Q. Balance this equation.
    _CH4 + _O--> _CO+ _H2O
    answer choices
    1,2,1,1
    2,1,2,1
    1,2,1,2
    0,2,0,2
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