500 prompts matching "The raw materials for ammonia manufacture"
Calculation practice: Calculating the mass of iron from a mass of haematite
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Chemistry at work: The Nigerian iron and steel industry
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Explain back: The electrolytic extraction of aluminium
I have just studied the electrolytic extraction of aluminium in my SS3 Chemistry class. Le
Exam practice: The amphoteric nature of aluminium oxide and hydroxide
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Calculation practice: Calculating the electricity needed to extract aluminium
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Chemistry at work: Aluminium smelting and the power it demands
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Explain back: The trend in reactivity and in oxidising power
I have just studied the trend in reactivity and in oxidising power in my SS3 Chemistry cla
Calculation practice: Calculating the volume of chlorine produced
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Chemistry at work: The hazards of the halogens and their safe handling
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Explain back: Sulphur trioxide and the contact process
I have just studied sulphur trioxide and the contact process in my SS3 Chemistry class. Le
Calculation practice: Calculating the yield of sulphuric acid from sulphur
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Explain back: The preparation and properties of carbon dioxide
I have just studied the preparation and properties of carbon dioxide in my SS3 Chemistry c
Exam practice: The tests that distinguish the two oxides of carbon
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Calculation practice: Calculating the carbon dioxide released by a mass of limestone
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Chemistry at work: Carbon dioxide in the Nigerian bottling and fire-safety trades
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Explain back: Permanent hardness and the compounds responsible
I have just studied permanent hardness and the compounds responsible in my SS3 Chemistry c
Calculation practice: Calculating the amount of softener required
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Chemistry at work: Hardness and the Nigerian water supply industry
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Exam practice: The NPK rating and how to read it
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Calculation practice: Calculating the nitrogen content of a fertiliser
Act as my SS3 Chemistry tutor. Walk me through calculating the nitrogen content of a ferti