Georgia Mealings
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Triple Science: Chemistry Unit 1-Calcium

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Georgia Mealings
Created by Georgia Mealings over 5 years ago
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Calcium
1 Calcium oxide is useful for making glass, cement and limewater.
2 Calcium carbonate decomposes to make calcium oxide and carbon dioxide.
3 Limewater is calcium hydroxide solution. When it reacts with carbon dioxide, a cloudy precipitate of calcium carbonate forms, because calcium carbonate is insoluble.
4 In thermal decomposition chemicals break down into more than one substance when heated.
5 The reaction between calcium oxide and water produces calcium hydroxide.
6 Acidic soil can be made less acidic by mixing it with calcium carbonate, hydroxide, or oxide.
7 Calcium compounds are used to stop sulfur dioxide getting into the atmosphere.