Lab: Physical and Chemical Changes Answers
9 verified answers
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 acetateD
baking soda + carbon dioxide + water + sodium acetate2
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Bread dough rising:
A
gas formationB
color changeC
light emission3
Bread toasting:
A
gas formationB
color changeC
light emission6
Meat cooking:
A
gas formationB
color changeC
light emission7
Fireworks exploding:
A
gas formationB
color changeC
light emission10
Baking cake batter: Shredding paper:
Answers:
Selection 1:yes
Selection 2:no
11
Shredding paper:yes ✔ no
A
yesB
no14
Twisting metal wire:
Answers:
Selection 1:no
Selection 2:yes
17
Newspaper yellowing in the sunlight:
Answer not available
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