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 will form a carbonate?

Flourine.
Sodium.
Helium.
Oxygen.

Question 2. Which of the following elements won't form a carbonate?

Chlorine.
Copper.
Magnesium.
Zinc.

Question 3. What is formed when we add any carbonate to an acid?

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

Question 4. 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 5. What is the formula of calcium carbonate?

Ca(OH)2.
CaO.
CaCO3.
CO2.

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