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| Questão | Responda |
| What does Limestone contain? | Calcium Carbonate |
| What are the symbols for Calcium Carbonate? | CaCO3 |
| What are 2 examples of limestone? | chalk marble |
| Give 3 uses of limestone | make buildings with it cement+sand=mortar glass |
| How was Limestone made? |
from sea creatures shells over millions of years ago, as the sea animals died they sank to the bottom of the ocean , as the layers of shells built up they became compressed into sedimentary rock
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| When limestone is heated (Thermally Decomposes) what does it form? | calcium oxide and carbon dioxide |
| how is calcium hydroxide produced? | when calcium oxide reacts with water |
| what is thermal decomposition? | when one substance chemically changes into at least 2 new substances when its heated |
| other metal carbonates decompose in the same way. how does copper decompose? | copper carbonate-->copper oxide+carbon dioxide |
| how do we test for carbon dioxide gas? | bubbling it through limewater (which will form cloudy) |
| write out the limestone cycle | look at notes for answer |
| how can you tell the difference between calcium oxide and calcium carbonate? | add water to calcium oxide and it will produce calcium hydroxide |
| what is the calcium carbonate and hydrochloric acid reaction? | calcium carbonate+hydrochloric acid->carbon dioxide+water+calcium hydroxide |
| what are 4 advantages of quarrying limestone? | 1. jobs 2. cheaper housing 3. more facilities 4. can be made as an area of interest when the quarry is finished |
| what are 3 disadvantages of quarrying limestone? | 1. dust, noise 2. destruction of habitat 3. decreasing house prices |
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