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Science, Chemistry
8th
grade
Physical and Chemical Changes (Experiment Review)
16 questions
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- 1. Multiple Choice
What are two physical properties of copper?
Solid
Compressible
Non-conductive
Reddish-brown colour
tagsActivity 1 - 2. Multiple Choice
What are two physical properties of water?
Gas
Transparent
Non-conductive
Strong odour
tagsActivity 1 - 3. Multiple Choice
What are two physical properties of iron?
Liquid
Non-compressible
Non-conductive
Strong hardness
tagsActivity 1 - 4. Multiple Choice
Chemical reactions are irreversible.
True.
False.
- 5. Multiple Choice
Melting chocolate is a chemical change.
True.
False.
- 6. Multiple Choice
Making caramel is a physical change.
True.
False.
- 7. Multiple Choice
Heating washing soda is a chemical change.
True.
False.
- 8. Multiple Choice
What happens when iron wool reacts with copper sulphate?
No chemical change occurs.
The iron wool contracts.
The blue colour of the solution changes to pale green.
The wool becomes coated in brown copper.
- 9. Multiple Choice
What product is formed when magnesium ribbon is burnt in air or oxygen?
Magnesium Sulfate
Magnesium Oxide
Magnesium Chloride
Magnesium Carbonate
tagsActivity 6 - 10. Multiple Choice
What are two physical properties of magnesium oxide?
White
Smoke
Powdered Solid
Liquid
tagsActivity 6 - 11. Multiple Choice
What is produced when Magnesium reacts with Hydrochloric Acid?
Hydrogen
Water
Carbon Dioxide
tagsActivity 7 - 12. Multiple Choice
What are the three products of the chemical reaction between hydrochloric acid and baking soda?
Water
Salt
Oxygen
Carbon Dioxide
Magnesium
- 13. Multiple Choice
Carbon dioxide supports combustion.
True.
False.
- 14. Multiple Choice
Oxygen supports combustion.
True.
False.
- 15. Multiple Choice
What are two physical properties of copper carbonate?
Green
Powdered Solid
High Viscosity Liquid
Gas
- 16. Multiple Choice
What are the two products formed after the heating of copper carbonate?
Copper Sulfate
Carbon Dioxide
Oxygen
Copper Oxide
- Answer choicesTagsAnswer choicesTags