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Test Description: Quiz covering many of the science terms involved in chemical reactions, solutions, mixtures and concentrations.
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of a solution?
A
salt mixed with sand
B
oil mixed with water
C
citric acid mixed with water
D
citric acid mixed with oil
2) Which of the following is the solute in a solution of salt water?
A
Salt water
B
Salt
C
Water
D
Water Salt
3) Which is the difference between a mixture that is a solution and a mixture that is not a solution?
A
Solutions dissolve compared to mixtures that are not solutions which do not dissolve
B
Mixtures that are not solutions dissolve compared to mixtures that are solutions which do not dissolve
C
There is no difference
D
We can drink solutions, we can not drink mixtures.
4) What is the scientific difference between solutions with different concentrations?
A
Solutions that are more concentrated have more solute than solutions that are less concentrated
B
Solutions that are less concentrated have more solute than solutions that are more concentrated
C
There is no difference
D
The solute and solvent reacted more in a concentrated solution than in a less concentrated solution
5) Which of the following is a chemical change?
A
Salt dissolving in water
B
Citric Acid dissolving in water
C
Seperating iron filings from sand by using a magnet
D
An iron nail slowing changing into a new substance known as rust
6) Which of the following is a physical change?
A
Burning paper which makes ashes
B
Alka-Seltzer mixing with water
C
Mixing baking soda and vinegar to make carbon dioxide, water and salt
D
A bowl falling and breaking into many pieces
7) What are the reactants in a reaction between baking soda and vinegar which produces carbon dioxide, water and salt?
A
Vinegar
B
Baking soda and vinegar
C
Carbon Dioxide, water and salt
D
The mixture fizzes and releases a gas
8) Which of the following are the products in the chemical reaction between Alka-Seltzer and water which then makes carbon dioxide, water, and salt?
A
The solution fizzes and releases a gas
B
Carbon dioxide, water and salt
C
Carbon dioxide and water
D
Alka- Seltzer and water
9) Our world needs to build cleaner factories because...
A
We need our air to be less concentrated with carbon dioxide
B
They will look nicer
C
Triethyeneglycolase is bad for our environment
D
The factories will have to spend less time seperating mixtures
10) One place where mixtures are COMMONLY seperated would be at a...
A
gym class
B
baseball game
C
classroom
D
farm
*select an answer for all questions
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