Snapquiz - The Limestone Cycle

This is the Snapquiz on The Limestone Cycle. Click here or use the embedded video if you haven't watched the lesson yet.

Question 1. Which of the following elements won't form a carbonate?


Question 2. How do we form calcium hydroxide?

Add water to limestone.
Add water to calcium oxide.
Add water to calcium carbonate.
Dissolve limestone in acid.

Question 3. The formation of calcium hydroxide is exothermic. What does "exothermic" mean?

It only happens when it's heated.
It absorbs heat.
It doesn't change in temperature.
It releases heat.

Question 4. What is formed when we strongly heat limestone?

Calcium carbonate.
Calcium hydroxide.
Calcium oxide.

Question 5. What is formed when we add any carbonate to an acid?

An alkaline solution.
Hydrogen and carbon dioxide.
A salt and hydrogen.
A salt and carbon dioxide.

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