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Balanced or Not Balanced ( Chemical Equations)
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  • Question 1
    30 seconds
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    Q. In this image, what are the information in red is called the_______.
    answer choices
    Product
    Reactant
    Chemical Subscript
    Coefficient
  • Question 2
    30 seconds
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    Q. In this image, what are the information to the right of the arrow (in black) is called the_______.
    answer choices
    Product
    Reactant
    Chemical Subscript
  • Question 3
    30 seconds
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    Q. The law of conservation of mass states that....
    answer choices
    Matter can be made
    Matter can be destroyed
    Matter can neither be made or destroyed
    Matter can evaporate
  • Question 4
    30 seconds
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    Q. Is this balanced?...
    Al + O2 --> 2Al2O3
    answer choices
    Yes!
    NO!
  • Question 5
    30 seconds
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    Q. At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
    answer choices
    the product is doubled
    the product is half the mass of the reactants
    the mass is the same
    the mass changes depending on the reaction
  • Question 6
    30 seconds
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    Q. Why is the following chemical equation not balanced?
    H2 + O2 --> H2O
    answer choices
    each side of the equation has a different number of oxygen atoms
    each side of the equation has a different number of hydrogen atoms
    each side has the same mass
  • Question 7
    60 seconds
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    Q. How many atoms of aluminum are on each side of the following equation: 4Al + 3O--> 2AlO3
    answer choices
    2
    6
    1
    4
  • Question 8
    60 seconds
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    Q. How many atoms of aluminum are on each side of the following equation: 4Al + 3O--> 2AlO3
    answer choices
    2
    6
    1
    4
  • Question 9
    120 seconds
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    Q. Is the following equation balanced or unbalanced?
    Fe + S --> FeS
    answer choices
    balanced
    unbalanced
  • Question 10
    120 seconds
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    Q. What coefficient should be used to make the following equation balanced?
    N2+O2--> _NO 
    answer choices
    1
    2
    3
    4
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