500 prompts matching "The physical properties that make water unusual"
Explain back: Reduction with carbon, and when it works
I have just studied reduction with carbon, and when it works in my SS3 Chemistry class. Le
Practice set: Extraction by electrolysis, and when it is necessary
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Spot my mistake: Proposing carbon reduction for aluminium
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Exam practice: Converting pig iron into steel
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Quiz me: Purifying bauxite before electrolysis
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Spot my mistake: Describing aluminium oxide as purely basic
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Exam practice: Sulphuric acid as an acid, a dehydrating agent and an oxidiser
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Teach me: Nitrogen, its occurrence and its inertness
You are my personal SS3 Chemistry tutor. Teach me nitrogen, its occurrence and its inertne
Exam practice: Nitric acid, its manufacture and its reactions
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Spot my mistake: Treating dilute and concentrated nitric acid alike
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Spot my mistake: Describing carbon monoxide as an acidic oxide
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Teach me: What hardness is, and what causes it
You are my personal SS3 Chemistry tutor. Teach me what hardness is, and what causes it, us
Practice set: Removing temporary hardness
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Exam practice: Removing permanent hardness by chemical and ion-exchange methods
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Spot my mistake: Expecting boiling to remove permanent hardness
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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
Practice set: Phosphate and potash fertilisers
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Spot my mistake: Assuming more fertiliser always means a better yield
Act as my SS3 Chemistry tutor. Show me a worked answer on assuming more fertiliser always
Explain back: Variable oxidation state, and why it arises
I have just studied variable oxidation state, and why it arises in my SS3 Chemistry class.
Spot my mistake: Calling zinc a typical transition metal
Act as my SS3 Chemistry tutor. Show me a worked answer on calling zinc a typical transitio