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15
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How do you determine if a chemical equation is balanced or unbalanced?
The total amount of atoms of each element must be the same on the reactants and products side of the equation.
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15
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The ____________________ are the elements or compounds on the left side of a chemical equation.
Reactants
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15
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Balanced or Unbalanced? SnO2 + 2H2 â Sn + H2O2
Unbalanced
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15
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Which number in a chemical formula tells you how many molecules of an element or compound you have?
Coefficient
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15
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Briefly explain the Law of Conservation of Mass in your own words.
The Law of Conservation of Mass states that matter cannot be created or destroyed.
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15
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If the number of atoms of each element in a chemical equation are not equal on both sides of a chemical equation, then the equation is -
Unbalanced
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15
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Physical or Chemical Change: A chain link fence rusting
Chemical
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A(n) ____________________ is a shorthand representation of an element or compound using chemical symbols.
Chemical Formula
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Balanced or Unbalanced? Mg + HCl â MgCl2 + H2
Unbalanced
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Balanced or Unbalanced? 6CO2 + 6H2O â C6H12O6 + 6O2
Balanced
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Balanced or Unbalanced? 3C + 2Fe2O3 â 4Fe + 3CO2
Balanced
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seesaw
Swap points!
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star
Double points!
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gift
Win 10 points!
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banana
Go to last place!
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trap
No points!
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fairy
Take points!
5
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20
25
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fairy
Take points!
5
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25
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banana
Go to last place!
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thief
Give points!
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20
25
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magnet
Take 20 points!
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fairy
Take points!
5
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15
20
25
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banana
Go to last place!
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15
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Which of the answers below would be a correct chemical symbol of an element? a. BE b. be c. bE d. Be
Be
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15
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The __________ are the elements or compounds on the right side of a chemical equation.
products
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