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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
reactivity
B
rusting
C
flammability
D
luster
2) Which of the following is a chemical property of water?
A
Has a density of 1g/mL
B
Reacts violently with Sodium to produce a new substance
C
Will freeze at 32 degrees fahrenheit
D
Is a liquid at room temperature
3) What is the density of a substance with a mass of 42g and a volume of 6cm3?
A
7 g/cm3
B
252 g/cm3
C
6 g/cm3
D
0.14 g/cm3
4) Which of the following substances is a homogeneous mixture?
A
a snow globe
B
pure water
C
a fruit salad
D
salt water
5) What happens to the attractive force among the particles when a substance melts?
A
Breaks bonds completely
B
Gets stronger
C
Gets weaker
D
Remains the same
6) Which of the following is NOT a chemical change?
A
Burning a piece of paper
B
Baking a cake
C
Lighting fireworks
D
Tearing a piece of paper
7) What type of change must occur to separate a pure substance?
A
Physical Change
B
Change of state
C
Change of temperature
D
Chemical Change
8) Which of the following is a suspension?
A
snowglobe
B
sugar water
C
jello
D
shaving cream
9) What type of mixture is Kool-Aid?
A
Colloid
B
Solution
C
Homogeneous Mixture
D
Suspension
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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