Physical Vs. Chemical Change HW
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by Angela Peterson
| 12 Questions
Note from the author:
Physical Vs. Chemical Change compare contrast
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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
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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
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Is dissolving a physical or chemical change?
A . Physical
B . Chemical
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Is reactions a chemical or physical change?
A. Physical
B . Chemical
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Is slicing something in half a physical or chemical change?
A . Physical
B. Chemical
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Water in liquid form heating to form water in steam form - is that a physical or chemical change?
A . Physical
B . Chemical
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When a chemical breaks into two new chemicals is that a Physical or Chemical change?
A . Physical
B . Chemical
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4 Fe + 3 O2 ----> 2 Fe2O3
A . Physical
B . Chemical
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Solid water turning into liquid water
A . Physical
B . Chemical
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HCl + CaCO3 -----> HCO3 +CaCl (acid/liq.) + (base) (gas) (salt/solid)

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A . Physical
B . Chemical
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Watch this video. what do you think:
physical or chemical change?
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A . Physical
B . Chemical
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Watch this video. is digestion by a fungus a chemical or physical change?
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A . Physical
B. Chemical
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