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Physical Vs. Chemical Change HW
By Angela Peterson
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Last updated over 7 years ago
12 questions
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Note from the author:
Physical Vs. Chemical Change compare contrast
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Question 1
1.
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
Question 2
2.
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
Question 3
3.
Is dissolving a physical or chemical change?
A . Physical
B . Chemical
Question 4
4.
Is reactions a chemical or physical change?
A. Physical
B . Chemical
Question 5
5.
Is slicing something in half a physical or chemical change?
A . Physical
B. Chemical
Question 6
6.
Water in liquid form heating to form water in steam form - is that a physical or chemical change?
A . Physical
B . Chemical
Question 7
7.
When a chemical breaks into two new chemicals is that a Physical or Chemical change?
A . Physical
B . Chemical
Question 8
8.
4 Fe + 3 O2 ----> 2 Fe2O3
A . Physical
B . Chemical
Question 9
9.
Solid water turning into liquid water
A . Physical
B . Chemical
Question 10
10.
HCl + CaCO3 -----> HCO3 +CaCl (acid/liq.) + (base) (gas) (salt/solid)
A . Physical
B . Chemical
Question 11
11.
Watch this video. what do you think:
physical or chemical change?
A . Physical
B . Chemical
Question 12
12.
Watch this video. is digestion by a fungus a chemical or physical change?
A . Physical
B. Chemical
