Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
What is limestone made from? |
Calcium Carbonate |
|
|
How do you get limestone out of the ground? |
Quarrying |
|
|
What is limestone used for? |
it is used as a buliding material. it is also used in the chemical industry and for cosmetics. Cemenet: made by heating limestone with clay kiln. Mortar: made by mixing cement and sand with water. Concrete: Made by mixing crushed rocks or stones. |
|
|
What is thermal decomposition? |
Breaking down of a chemical by heating. |
|
|
Write the word and symbol equations for the thermal decomposition of calcium carbonate. |
CaCO3---> CaO2 Calcsium carbonate --> calcium oxide+carbon dioxide. |
|
|
What happends to magnesium carbonate, copper carbonate, zinc carbonate when they are heated? |
Theyundergo thermal decomposition. |
|
|
write the word and symbol equations to show what happends when calcium oxide reacts with water. What can the product be used for? |
CaO+H2O-->Ca(OH)2 Calcium oxide+water-->calcium hydroxide Calcium hydroxide is used to neutralise acidic solids. |
|
|
what can you use to test for carbon dioxide? what would a positive test be? |
Limewater can be used to test for carbobn dioxide. A positive test is if it goes cloudy. |
|
|
What happens to limestone statues when expoxed to acidic rain? |
The limestone disolves |
|
|
Complete the following: |
Limestone+Heat+Clay=cement Cement+Sand=Mortar Cemenet+Sand+aggregate=Concetrete
|
|
|
List the advantages of a limestone Quarry |
Provide Jobs Lead to imporved roads filled in to make fishing lakes |
|
|
List disadvatages of a limestone quarry |
destroy habbitats increased emmisions noisy butter roads
|
