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S3w4 Tuesday Bellringer
By Gwyneth Lenfest
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Last updated 9 months ago
12 questions
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Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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Question 11
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Question 12
12.
Chemical Changes involve:
A . the original substance existing at the end
B . A new substance forming at the end
C . Energy changes
D . no change in energy
E . a physical change
F. Ability for original substance to be separated if it is a mixture
Physical changes involve:
A . existence of the original substance at the end
B . a new substance forming
C .
Always
a change in energy
D .
Sometimes
a change in energy
E. Chemical Change
F. Ability for original substance to be separated if it is a mixture
Is dissolving a physical or chemical change?
A . Physical
B . Chemical
are reactions a chemical or physical change?
A. Physical
B . Chemical
Is slicing something in half a physical or chemical change?
A . Physical
B. Chemical
Water in liquid heated to form water in steam form - is that a physical or chemical change?
A . Physical
B . Chemical
When a chemical breaks into two new chemicals is that a Physical or Chemical change?
A . Physical
B . Chemical
4 Fe + 3 O2 ----> 2 Fe2O3
A . Physical
B . Chemical
Solid water turning into liquid water
A . Physical
B . Chemical
HCl + CaCO3 -----> HCO3 +CaCl (acid/liq.) + (base) (gas) (salt/solid)
A . Physical
B . Chemical
Milk souring is
Physical change
chemical change
is digestion by a fungus a chemical or physical change?
A . Physical
B. Chemical
