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25
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Is this chemical equation balanced or unbalanced?
unbalanced
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25
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What is Mg(NO3)2 made up of? Include elements and number of them.
1 Magnesium 2 nitrogen's 6 oxygens
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25
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What is NaHCO3 (Baking Soda) made up of?
1 sodium, 1 hydrogen, 1 carbon, 3 oxygen
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25
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How many total atoms are in this chemical formula?
9
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25
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What part of a chemical reaction is number 2?
Products
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eraser
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gift
Win 25 points!
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rocket
Go to first place!
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thief
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5
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15
20
25
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baam
Lose 10 points!
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gold
Win 50 points!
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gift
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baam
Lose 20 points!
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25
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How many Nitrogen atoms are in this chemical formula?
12
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25
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Identify the evidence of a chemical change in this reaction.
Formation of a gas, bubbles
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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 part of a chemical reaction is number 1?
Reactants
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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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eraser
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fairy
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5
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25
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gift
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thief
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5
10
15
20
25
25
×
How many total atoms in this chemical formula?
52
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25
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How many Potassium atoms are in this chemical formula?
8
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25
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Chemical reactions that release energy are called __________.
Exothermic
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