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. What is formed when we strongly heat limestone?

Calcium oxide.
Calcium hydroxide.
Calcium carbonate.
Calcium.


Question 2. Which of the following elements will form a carbonate?

Oxygen.
Helium.
Sodium.
Flourine.


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

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


Question 4. How do we form calcium hydroxide?

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


Question 5. Which of the following elements won't form a carbonate?

Chlorine.
Magnesium.
Copper.
Zinc.


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