AnswersCHS Chemistry AEvidence of Chemical Reactions

Evidence of Chemical Reactions Answers

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1
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Which of the following is the correct word equation to illustrate this reaction?

A
baking soda + vinegar carbon dioxide + water + sodium acetate
B
baking soda + water carbon dioxide + vinegar + sodium acetate
C
baking soda + vinegar + carbon dioxide + water + sodium acetate
D
baking soda + carbon dioxide + water + sodium acetate
2
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Bread toasting:

A
gas formation
B
color change
C
light emission
3

Question text not available

Answers:
Selection 1:no
Selection 2:yes
4

Newspaper yellowing in the sunlight:yes no

A
yes
B
no
5

Bread dough rising:

A
gas formation
B
color change
C
light emission
6

Meat cooking:

A
gas formation
B
color change
C
light emission
7

Question text not available

Answers:
Selection 1:yes
Selection 2:no
8

Baking cake batter:yes no

A
yes
B
no
9

Fireworks exploding:

A
gas formation
B
color change
C
light emission
10

Shredding paper:yes no

A
yes
B
no
11

Twisting metal wire:yes no

A
yes
B
no

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