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 the formula of calcium carbonate?

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


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

Magnesium.
Copper.
Chlorine.
Zinc.


Question 3. What is the standard test for carbon dioxide?

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


Question 4. The formation of calcium hydroxide is exothermic. What does "exothermic" mean?

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


Question 5. How do we form calcium hydroxide?

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


If you would like to track your scores, please enter your preferred first name into the box (please note, this uses cookies to store the data on your computer/phone/tablet - please see the FAQ for more information). Alternatively, if your teacher has given you a code starting with a # symbol, you can enter that:


Snapquiz© CJ Thornton    Terms and Conditions    Privacy
Teachers


Log out