250 prompts matching "Exam practice: A final mixed paper before the examination"
Explain back: The rules for assigning oxidation numbers
I have just studied the rules for assigning oxidation numbers in my SS2 Chemistry class. L
Spot my mistake: Assigning an oxidation number without checking the overall charge
Act as my SS2 Chemistry tutor. Show me a worked answer on assigning an oxidation number wi
Explain back: Why oxidation and reduction always occur together
I have just studied why oxidation and reduction always occur together in my SS2 Chemistry
Spot my mistake: Calling the oxidising agent the substance that is oxidised
Act as my SS2 Chemistry tutor. Show me a worked answer on calling the oxidising agent the
Calculation practice: Balancing a redox equation in acidic solution
Act as my SS2 Chemistry tutor. Walk me through balancing a redox equation in acidic soluti
Calculation practice: Comparing metals by a density calculation
Act as my SS2 Chemistry tutor. Walk me through comparing metals by a density calculation a
Explain back: The allotropes shown by some non-metals
I have just studied the allotropes shown by some non-metals in my SS2 Chemistry class. Let
Calculation practice: Predicting a non-metal's valency from its group
Act as my SS2 Chemistry tutor. Walk me through predicting a non-metal's valency from its g
Chemistry at work: Metalloids, and where they sit between the two
Act as my SS2 Chemistry tutor. Explain which Nigerian jobs and industries depend on metall
Explain back: The preparation and properties of chlorine
I have just studied the preparation and properties of chlorine in my SS2 Chemistry class.
Explain back: The preferential discharge of ions
I have just studied the preferential discharge of ions in my SS2 Chemistry class. Let me e
Calculation practice: Applying Faraday's first law to a calculation
Act as my SS2 Chemistry tutor. Walk me through applying Faraday's first law to a calculati
Explain back: Metals and their extraction reviewed
I have just studied metals and their extraction reviewed in my SS2 Chemistry class. Let me
Spot my mistake: The errors most often made in first-term SS2 Chemistry
Act as my SS2 Chemistry tutor. Show me a worked answer on the errors most often made in fi
Chemistry at work: Preparing a revision plan for the SS2 first term
Act as my SS2 Chemistry tutor. Explain which Nigerian jobs and industries depend on prepar
Explain back: The strength of an acid and the degree of ionisation
I have just studied the strength of an acid and the degree of ionisation in my SS2 Chemist
Spot my mistake: Treating concentration and strength as the same thing
Act as my SS2 Chemistry tutor. Show me a worked answer on treating concentration and stren
Calculation practice: Calculating pH from hydrogen ion concentration
Act as my SS2 Chemistry tutor. Walk me through calculating pH from hydrogen ion concentrat
Calculation practice: Preparing a solution of a stated concentration
Act as my SS2 Chemistry tutor. Walk me through preparing a solution of a stated concentrat
Explain back: Calculating the average titre correctly
I have just studied calculating the average titre correctly in my SS2 Chemistry class. Let