Skip to content
Back to quiz
6. What can limestone be used to make?
- Calcium oxide and concrete
- Cement and calcium oxide
- Concrete
- Calcium oxide
- Cement
7. What two metal carbonates can a bunsen burner not decompose due to it not being hot enough?
- Lithium & Sodium
- Sodium & Calcium
- Potassium & Sodium
- Calcium & Potassium
8. How is mortar made?
- Cement is mixed with sand and water
- Cement is mixed with sand, aggregate and water
- Aggregate is mixed with water
- Water is mixed with sand
9. What is thermal decomposition?
- The breaking down of a compound by heating
- The burning of a compound
- The breaking down of a solution through heating and evaporating
10. What can limestone be used as? (On it's own)
- To hold bricks together
- A building material
- Calcium carbinate
11. What is the chemical symbol for calcium carbonate?
12. What solution do farmers use to neutralise their soils?
- Water
- Calcium carbonate
- Calcium hydroxide
- Oxygen
13. What three things are mixed with cement to make concrete?
- Aggregate, water, glue
- Sand, aggregate and water
- Sand, water, and pebbles
14. How is cement made?
- By mixing aggregate, sand and water and then heating it in a kiln
- By mixing clay and sand
- By mixing limestone and clay, and then heating it in a kiln
- By mixing clay and water
15. What happens when calcium hydroxide reacts with carbon dioxide?
- Produces a salt and water
- Produces calcium carbonate
- Produces water and calcium carbonate
- Produces water
- Produces carbon dioxide
16. All metals react in _______ _____ when heated or reacted with acids..
- Exact same ways
- Similar ways
- Different ways
17. What is the chemical symbol for calcium oxide?
18. What is limewater used for?
- To neutralise soils
- To test for carbon dioxide
- To neutralise acids
- To test for oxygen
19. Is calcium hydroxide and acid, alkali, or none of the following?
- Alkali
- Acid
- None of the following
20. What happens to calcium carbonate when it is strongly heated?
- It decomposes
- It neutralises
- It stays the same