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25
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What is this reaction called?
FERMENTATION
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25
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When some metals react with oxygen and water, they go ....
RUSTY
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25
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Which chemical reaction is also known as BURNING? a. OXIDATION b. FERMENTATION c. COMBUSTION
COMBUSTION
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lifesaver
Give 10 points!
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gift
Win 15 points!
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fairy
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banana
Go to last place!
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25
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What is the Product?
The new substance or final result
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25
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Which chemical reaction is used in order to PRESERVE FOOD? a. OXIDATION b. FERMENTATION c. COMBUSTION
b. FERMENTATION
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25
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Is burning wood a physical or chemical change?
CHEMICAL
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boom
Lose 50 points!
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shark
Other team loses 15 points!
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gift
Win 10 points!
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lifesaver
Give 15 points!
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25
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How can you tell/notice if it is a chemical or physical change?
There is a new substance that is created
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heart
Other team wins 20 points!
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gold
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fairy
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baam
Lose 20 points!
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25
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In a chemical reaction the original substances are called reactants
TRUE
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25
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explain the oxidation with your words
Some metals and some foods, react when they are exposed to air. Reacts and change to brown substance,rust
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The result of a chemical reaction is a substance similar to the original substances
FALSE
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Is going from ice to water a physical or chemical change?
PHYSICAL
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Energy change is a clue of chemical reaction
TRUE
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25
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Igniting fuel in a car engine is an example of a ____________ reaction
COMBUSTION
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