Balancing Chemical Equations
a year ago
loriyoung
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10 QuestionsShow answers
  • Question 1
    45 seconds
    Q. What is the Law of Conservation of Mass?
    answer choices
    It states that no matter can be created or destroyed.
    It states that no energy can be created or destroyed.
    It states that matter can be created or destroyed.
    It states that no sound can be created or destroyed.
  • Question 2
    45 seconds
    Q. What is a coefficient?
    answer choices
    The small number on the right of the chemical symbol.
    The large number in front of a chemical formula.
    The number in between the chemical symbols.
    The number behind a chemical formula.
  • Question 3
    45 seconds
    Q. What is the part of the chemical equation in green called? 
    Fe + S --> FeS
    answer choices
    products
    reactants
    yield
    chemical formula
  • Question 4
    45 seconds
    Q. What is the little number after an element in a chemical equation called.
    Example: H2
    answer choices
    Coefficient 
    Subscript
    Atom
    Equation
  • Question 5
    300 seconds
    Q. What coefficient should be used to make the following equation balanced?
    N2+O2--> _NO 
    answer choices
    1
    2
    3
    4
  • Question 6
    300 seconds
    Q. Which problem is balanced?
    (Check ALL answers)
    answer choices
    PbO2 + 2H2
    SO2 + H20 --> H2SO4
    2Na + 2H2O --> 2NaOH + H2
  • Question 7
    45 seconds
    Q. How many elements are in C6H12O6?
    answer choices
    1
    2
    3
    4
  • Question 8
    45 seconds
    Q. Element or compound?
    H2O
    answer choices
    element
    compound
  • Question 9
    300 seconds
    Q. How many HCl molecules do you need to balance this equation? 
    Mg +  __HCl --->  MgCl2 + H2
    answer choices
    1
    2
    3
    4
  • Question 10
    300 seconds
    Q. Is this balanced?
    Al + O2 → 2Al2O3
    answer choices
    Yes
    No
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