500 prompts matching "The treatment a town's water passes through before supply"
Spot my mistake: Predicting that iodine displaces chlorine
Act as my SS3 Chemistry tutor. Show me a worked answer on predicting that iodine displaces
Exam practice: Sulphuric acid as an acid, a dehydrating agent and an oxidiser
Act as my SS3 Chemistry teacher setting exam questions. Give me five exam-style questions
Chemistry at work: Sulphur dioxide and acid rain in Nigeria
Act as my SS3 Chemistry tutor. Explain which Nigerian jobs and industries depend on sulphu
Explain back: Ammonia, its preparation and its properties
I have just studied ammonia, its preparation and its properties in my SS3 Chemistry class.
Exam practice: Nitric acid, its manufacture and its reactions
Act as my SS3 Chemistry teacher setting exam questions. Give me five exam-style questions
Spot my mistake: Treating dilute and concentrated nitric acid alike
Act as my SS3 Chemistry tutor. Show me a worked answer on treating dilute and concentrated
Chemistry at work: Nitrogenous fertilisers in Nigerian farming
Act as my SS3 Chemistry tutor. Explain which Nigerian jobs and industries depend on nitrog
Spot my mistake: Describing carbon monoxide as an acidic oxide
Act as my SS3 Chemistry tutor. Show me a worked answer on describing carbon monoxide as an
Practice set: Removing temporary hardness
Act as my SS3 Chemistry tutor. Give me five practice questions on removing temporary hardn
Exam practice: Removing permanent hardness by chemical and ion-exchange methods
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Spot my mistake: Expecting boiling to remove permanent hardness
Act as my SS3 Chemistry tutor. Show me a worked answer on expecting boiling to remove perm
Practice set: Phosphate and potash fertilisers
Act as my SS3 Chemistry tutor. Give me five practice questions on phosphate and potash fer
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
Chemistry at work: Fertiliser production and distribution in Nigeria
Act as my SS3 Chemistry tutor. Explain which Nigerian jobs and industries depend on fertil
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
Project task: Observing colour changes in transition metal solutions
Act as my SS3 Chemistry tutor. Set me a short practical or research task on observing colo
Chemistry at work: Transition metals in Nigerian industry
Act as my SS3 Chemistry tutor. Explain which Nigerian jobs and industries depend on transi
Project task: Testing Nigerian foods for starch and for protein
Act as my SS3 Chemistry tutor. Set me a short practical or research task on testing Nigeri
Chemistry at work: Biochemistry and food science as careers
Act as my SS3 Chemistry tutor. Explain which Nigerian jobs and industries depend on bioche