500 prompts matching "Using Hess's law to find an unknown enthalpy change"
Practice set: The Haber process and the conditions it uses
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Spot my mistake: Treating dilute and concentrated nitric acid alike
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Calculation practice: Calculating the mass of ammonia from nitrogen and hydrogen
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Real-life Nigeria: The nitrogen cycle and nitrogen fixation
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Chemistry at work: Nitrogenous fertilisers in Nigerian farming
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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
Practice set: The preparation and properties of carbon monoxide
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Spot my mistake: Describing carbon monoxide as an acidic oxide
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Calculation practice: Calculating the carbon dioxide released by a mass of limestone
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Real-life Nigeria: Carbonates, hydrogencarbonates and their reactions
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Chemistry at work: Carbon dioxide in the Nigerian bottling and fire-safety trades
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Quiz me: Temporary hardness and the compounds responsible
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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
Real-life Nigeria: The advantages and disadvantages of hard water
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Chemistry at work: Hardness and the Nigerian water supply industry
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Quiz me: Straight fertilisers and compound fertilisers
Act as my SS3 Chemistry tutor and quiz me on straight fertilisers and compound fertilisers
Explain back: The manufacture of nitrogenous fertilisers
I have just studied the manufacture of nitrogenous fertilisers in my SS3 Chemistry class.
Practice set: Phosphate and potash fertilisers
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Spot my mistake: Assuming more fertiliser always means a better yield
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Real-life Nigeria: The effect of fertiliser overuse on soil and water
Act as my SS3 Chemistry tutor. Show me where the effect of fertiliser overuse on soil and