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?

Oxygen.
Sodium.
Helium.
Flourine.


Question 2. What is the standard test for carbon dioxide?

Bubble it through limewater, where it will form a white calcium carbonate precipitate.
Attempt to light it with a lit wooden spill, and it will cause a "squeaky pop" noise.
Add it to water, and it will raise the pH of the water.
Introduce a smouldering wooden spill, and it will reignite.


Question 3. Which of the following elements won't form a carbonate?

Copper.
Magnesium.
Chlorine.
Zinc.


Question 4. What is the important compound found in limestone?

Calcium hydroxide.
Calcium carbonate.
Calcium oxide.
Calcium.


Question 5. What is the formula of calcium carbonate?

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


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