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Ch 12 Chem/phy Changes
Test Description: Ch 12 test review
Instructions: Answer all questions to get your test result.
1) Medicines that kill bacterial are called
A
penicillin
B
polymer
C
antibiotics
D
plastic
2) What is a polymer?
A
a bitter solution that changes colors
B
a chain of identical molecules connected together
C
a sour solution that changes colors
D
a medicine that kills germs
3) This describes the strength of an acid
A
acidity
B
neutralizer
C
alkalinity
D
identity
4) What was added to a solution to tell if it was an acid or base?
A
a base
B
a pH
C
an acid
D
an indicator
5) What is added to your stomach when you have a build up of acid?
A
more acid
B
water
C
lemon juice
D
a base
6) When bubbles form, this is an example of what change?
A
chemical change
B
neutral change
C
acid change
D
physical change
7) If a solution is not an acid or a base, it is
A
acidic
B
a polymer
C
neutral
D
basic
8) Plastic is a polymer made from
A
physical reactions
B
petroleum
C
liquids
D
gas
9) A candle burning is a chemical change because
A
the candle changes size and shape
B
the candle changes color
C
the candle can be reused
D
the wax dissappears and becomes a gas
10) Making a paper airplane out of paper is what kind of change?
A
chemical change
B
physical change
C
neither
D
chemical change and physical change
*select an answer for all questions
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