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