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