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15
×
50 g of CO2 + 50g of H2O equals 20g of C6H12O6 + 40g of O2. Is this equation balanced or unbalanced?
Unbalanced
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15
×
Which of the following chemical formulas contains the most elements? a. CO b. NaCl c. NaHCO3 d. H2O
c. NaHCO3
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15
×
Which number in a chemical formula tells you how many molecules of an element or compound you have?
Coefficient
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15
×
Balanced or Unbalanced? 6CO2 + 6H2O â C6H12O6 + 6O2
Balanced
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15
×
Physical or Chemical Change: A piece of bread molds.
Chemical
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15
×
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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seesaw
Swap points!
Oops!
×
gift
Win 25 points!
Okay!
×
shark
Other team loses 25 points!
Okay!
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baam
Lose 15 points!
Oops!
15
×
How many molecules of carbon dioxide does this formula indicate you have: 6CO2?
6
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15
×
Balanced or Unbalanced? Ba3N2 + 6H2O â 3Ba(OH)2 + 2NH3
Balanced
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×
baam
Lose 10 points!
Oops!
×
shark
Other team loses 15 points!
Okay!
×
gift
Win 15 points!
Okay!
×
baam
Lose 25 points!
Oops!
15
×
Physical or Chemical Change: Melting glue in a hot glue gun
Physical
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Check
Okay!
Check
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banana
Go to last place!
Oops!
×
gold
Win 50 points!
Okay!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 15 points!
Oops!
15
×
The __________ are the elements or compounds on the right side of a chemical equation.
products
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15
×
Balanced or Unbalanced? Mg + HCl â MgCl2 + H2
Unbalanced
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15
×
Physical or Chemical Change: Sugar dissolving in tea.
Physical
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Check
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thief
Give points!
5
10
15
20
25
×
gift
Win 20 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 10 points!
Oops!
×
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