why must calcium carbonate carbonate be heated continuously to convert it into calcium oxide and carbon dioxide?
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Card 7
Front
nitrogen and oxygen react together to produce nitrogen oxide. What changes in conditions would increase the rate of this reaction.
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Card 8
Front
explain in terms of particles why increasing the concentration of a reactant increases the rate of the reaction.
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Card 9
Front
explain why increasing the temperature increases the rate of reaction.
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Card 10
Front
Dilute nitric acid is added to sodium hydroxide solution.1) what type of substance is sodium hydroxide? 2)what type of reaction happens? 3) why is an indicator used to show when the reaction is complete?
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Card 11
Front
why are some items of jewellery made of gold-plated nickel?
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Card 12
Front
why is manufacturing aluminium an expensive process?
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Card 13
Front
why is cryolite used in the process to make aluminium?
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Card 14
Front
explain as fully as you can what happens at the electrode when molten sodium chloride is electrolysed.
