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seesaw
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gift
Win 25 points!
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shark
Other team loses 15 points!
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lifesaver
Give 5 points!
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25
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Which is the correct formula for: three hydrogen (H) one sulfur (S) four oxygen (O):
H3SO4
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banana
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gift
Win 10 points!
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shark
Other team loses 10 points!
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banana
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25
×
Identify what evidence of a chemical reaction is shown in the picture.
unexpected color change
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25
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What is the coefficient in this chemical formula?
coefficient:3Â
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25
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What is the Law of Conservation of Mass?
Matter cannot be created or destroyed
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25
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Chemical changes that absorb energy are called __________.
Endothermic reactions
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25
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Chemical reactions that release energy are called __________.
Exothermic
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25
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What are the subscripts in this chemical formula?
Mg= 1 Cl=2
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How many total atoms does this chemical formula have?
13
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thief
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5
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20
25
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shark
Other team loses 10 points!
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fairy
Take points!
5
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25
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thief
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5
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20
25
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seesaw
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star
Double points!
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fairy
Take points!
5
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25
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banana
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25
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The coefficient tell us what about the chemical formula?
how many compounds there are
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25
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If there is no subscript, there is ______ atom(s) of that element.
1
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25
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How many oxygen atoms are in this chemical formula
36
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25
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What elements are in this chemical formula?
Potassium (K) Carbon (C) Oxygen (O)
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