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15 Cards in this Set
- Front
- Back
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what is limestone made from |
calcium carbonate |
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how do you get limestone out of the ground |
quarrying |
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what is limestone used for |
its used as a building material for example cement and concrete. |
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what is thermal decoposition |
the breaking down of a chemical by heating |
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write the word and symbol equations for the thermal decomposition of cacium carbonate |
CaCo3 -)CaO+CO2 calcium carbonate-) calcuim oxide + carbon dioxide |
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what happens to magnesium carbonate , copper carbonate, zinc carbonate when they are heated |
they undergo thermal decomposition |
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write the word and symbol equations to show what happens when calcuim 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 acidc soils |
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what can you used to test for carbon Dioxide ? what would a positive test be? |
limewater can be used to test for carbon dioxide a positive test isif it goes cloudy |
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what happens to liestone statues when exposed to acid rain |
the limestone dissolves |
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limestone+heat+clay= |
cement |
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cement+ sand= |
motar |
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cement + sand+aggregate = |
concrete |
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advantage of quarrying |
provide jobs lead to improved roads filled in to make fishing when empty used as landfill sites |
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disadvantages of quarrtying
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noise pollution pollution busssier roads |
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e |
e |
