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Physical And Chemical Changes
Test Description: Part 1 of Unit 2 describing properties, changes, and types of matter
Instructions: Answer all questions to get your test result.
1) Which of the following is a physical property of silver?
A
rusting
B
luster
C
reactivity
D
flammability
2) Which of the following is a chemical property of water?
A
Will freeze at 32 degrees fahrenheit
B
Has a density of 1g/mL
C
Is a liquid at room temperature
D
Reacts violently with Sodium to produce a new substance
3) What is the density of a substance with a mass of 42g and a volume of 6cm3?
A
0.14 g/cm3
B
7 g/cm3
C
6 g/cm3
D
252 g/cm3
4) Which of the following substances is a homogeneous mixture?
A
a snow globe
B
salt water
C
a fruit salad
D
pure water
5) What happens to the attractive force among the particles when a substance melts?
A
Gets stronger
B
Gets weaker
C
Remains the same
D
Breaks bonds completely
6) Which of the following is NOT a chemical change?
A
Burning a piece of paper
B
Tearing a piece of paper
C
Lighting fireworks
D
Baking a cake
7) What type of change must occur to separate a pure substance?
A
Change of temperature
B
Change of state
C
Chemical Change
D
Physical Change
8) Which of the following is a suspension?
A
jello
B
snowglobe
C
shaving cream
D
sugar water
9) What type of mixture is Kool-Aid?
A
Colloid
B
Suspension
C
Solution
D
Homogeneous Mixture
10) When two elements form a compound, what happens to their identities.
A
Form new ones with new chemical bonds
B
Remain the same characteristics
*select an answer for all questions
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