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Chemistry Review
Test Description: Review for 6th grade chemistry unit.
Instructions: Answer all questions to get your test result.
1) Iron (Fe2) in the presence of oxygen (O2) creates rust (Fe2O3). The process of rusting would be an example of what?
A
chemical property
B
physical change
C
chemical change
D
physical property
2) Which of the following is a physical property of copper?
A
readily reacts with oxygen
B
can be formed into a wire
C
liquid at room temperature
D
readily reacts with water to form an acid
3) Use the following symbols Hydrogen (H) Helium (He) Oxygen (O) Carbon (C) Silicon (Si) Iron (Fe). Which of the following is a compound?
A
CO
B
Si
C
Fe
D
He
4) These elements are listed with their density: (Al) 2.7, (Cu) 8.9, (Au) 19.3, (Fe) 7.9, (Pb) 11.3, (Hg) 13.6. Which element below has particles that are packed the closest together?
A
Au
B
Al
C
Pb
D
Fe
5) Which of the following would be a chemical change?
A
You eating food and using it for energy.
B
Taking a strip of magnesium and rolling it into a ball.
C
A carpenter cutting would to make cabinets.
D
Ice melting to liquid when the temperature rises above 32 degrees fahrenheit.
6) Which of the following is an example of a physical change?
A
A glass cup falling from the counter and shattering on the floor.
B
Mixing baking soda and vinegar together causing bubbles and foam.
C
Baking a birthday cake for your mother.
D
Lighting a piece of paper on fire.
7) Which of the following would NOT be a physical change?
A
Melting gold to make jewelry
B
Boiling water for soup.
C
Burning gasoline in a lawnmower.
D
Tearing a piece of aluminum foil
8) Which of the following would be an example of a HETEROGENEOUS MIXTURE?
A
A burrito
B
Ocean water
C
Mr. Houp's Coffee
D
Diet Coke
9) Pick the chemical change out of the following.
A
mixing oil and water.
B
Hammering wood together.
C
A firework exploding
D
Separating sand from gravel.
10) Fire protectant suits that firefighters wear are not flammable, flammability is an example of which of the following?
A
Physical property
B
Physical change
C
Chemical property
D
Chemical change
*select an answer for all questions
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