C1 Limestone Flashcards
What is limestone made from?
Calcium carbonate
Give the formula for limestone?
CaCO3
What is unreacted limestone used for?
Building materials
What is thermal decomposition?
Using heat to break down a compound
What are the products of thermal decomposition of limestone?
Calcium Oxide and Carbon Dioxide
What products do metal carbonate produce when they are thermally decomposed?
Metal oxide and Carbon dioxide
Can all group 1 carbonates be decomposed using the Bunsen burner?
No Sodium carbonate cannot be broken down easily
If calcium oxide if reacted with water what is the product?
Calcium hydroxide
If calcium oxide if reacted with water is the product acid or alkali?
alkali
If calcium oxide if reacted with water what can this product be used for?
Testing for carbon dioxide
What is limewater?
Calcium hydroxide solution
If limewater reacted with carbon dioxide what does it produce?
Calcium carbonate
If limewater reacted with carbon dioxide what do you see?
Goes cloudy
What can limewater be used for?
Testing for carbon dioxide
If a metal carbonate reacts with an acid what are the products?
Metal salt, carbon dioxide and water
Give an equation for the reaction of calcium carbonate with hydrochloric acid?
CaCO3 +2HCl → CaCl2 +CO2 +H2O
What type of pollution is limestone damaged by?
Acid rain
Limestone is heated with what to make cement?
Clay
What is produced when cement is mixed with sand?
Mortar
What is produced when cement is mixed with sand and aggregate?
Concrete
Give 2 advantages of quarrying limestone.
Increased jobs
More limestone resources
Give 3 disadvantages of quarrying limestone.
Noise pollution
Eyesore
Dust
Give an advantage and disadvantage of using limestone as a building material.
Strong but difficult to transport and effected by acid rain
