Describing Chemical Reactions Answers

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Identify each part of this chemical equation, which describes the breakdown of water into hydrogen and oxygen.

Answers:
A (the entire green box)::chemical equation
B (the blue box)::reactants
C (the arrow)::reacts to form
D (the purple box)::products
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chemical equationproductsreacts to form✔ reactants

A
chemical equation
B
products
C
reacts to form
D
✔ reactants
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chemical equationproducts✔ reacts to formreactants

A
chemical equation
B
products
C
✔ reacts to form
D
reactants
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chemical equation✔ productsreacts to formreactants

A
chemical equation
B
✔ products
C
reacts to form
D
reactants
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Use the chemical equation to find the answers.

Answers:
Identify how many oxygen atoms are in the product.:3
Identify how many oxygen atoms are in the reactant.:3
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12✔ 3

A
1
B
2
C
✔ 3
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Use the chemical equation to find the answers.

Answers:
Identify how many oxygen atoms are in the product.:8
Identify how many oxygen atoms are in the reactant.:8
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42✔ 8

A
4
B
2
C
✔ 8
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When sugar is burned, water vapor and carbon dioxide are produced.

Answers:
Sugar has carbon atoms.:12
Sugar has hydrogen atoms.:22
Sugar has oxygen atoms.:11
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1112✔ 222435

A
11
B
12
C
✔ 22
D
24
E
35
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✔ 1112222435

A
✔ 11
B
12
C
22
D
24
E
35
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Calcium carbonate can break down to form calcium oxide and carbon dioxide.CaCO3 → CaO + CO2The oxygen atoms on the product side are

A
not balanced because there are only two oxygen atoms in CO2
B
not balanced because there is only one oxygen atom in CaO.
C
balanced because the total number of oxygen atoms is 3.
D
balanced when a coefficient of 3 is placed in front of CO2.
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When sugar is burned, water vapor and carbon dioxide are produced.

Answers:
Sugar has carbon atoms.:12
Sugar has hydrogen atoms.:22
Sugar has oxygen atoms.:11

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