Flashcards in 2.2 and 2.3 Reactions of Carbonates/The Limestone Cycle Deck (13)
Name 2 metal carbonates that cannot get hot enough to decompose in a Bunsen burner
What happens when all metal carbonates react with acid?
A salt, water and carbon dioxide is produced
Why is limestone damaged by acid rain?
The calcium carbonate in the limestone reacts with acids in the rain
Why is limewater used to test for carbon dioxide?
Limewater turns cloudy because when it reacts with carbon dioxide it starts producing insoluble calcium carbonate
What is produced when calcium carbonate is heated strongly?
Decomposes to calcium oxide and carbon dioxide
What is produced when a little water is added to calcium oxide?
What pH is calcium hydroxide?
Name 2 real life uses of calcium hydroxide
•farmers use it to neutralise acidic soils
•industries neutralise acidic gases
What is produced when more water is added to calcium hydroxide?
How soluble is calcium oxide in water?
Not very, but it dissolves slightly to make limewater
What happens when carbon dioxide is added to limewater?
It turns cloudy and then produces calcium carbonate
What are the chemical symbols for