2.2 Reactions of Carbonates Flashcards
1
Q
What happens to all metal carbonates when heated?
A
They decompose to make a metal oxide and carbon dioxide
2
Q
What do all carbonates react with acids to produce?
A
A salt, carbon dioxide and water
3
Q
What can a bunsen burner not get hot enough to decompose?
A
Sodium carbonate or potassium carbonate
4
Q
Why is limestone damaged by acid rain?
A
Because the calcium carbonate in the limestone reacts with the acid in the rain
5
Q
What is calcium hydroxide called?
A
Limewater
6
Q
What is limewater used to test for?
A
Carbon dioxide
7
Q
What happens to the limewater if carbon dioxide is present?
A
The limewater turns cloudy
8
Q
Why does the limewater turn cloudy?
A
Because it reacts with carbon dioxide to produce insoluble calcium carbonate
