483 prompts matching "Concentrating an ore before extraction"
Exam practice: Identifying the oxidising and the reducing agent in a reaction
Act as my SS1 Chemistry teacher setting exam questions. Give me five exam-style questions
Spot my mistake: Assigning an oxidation number to the wrong atom
Act as my SS1 Chemistry tutor. Show me a worked answer on assigning an oxidation number to
Calculation practice: Balancing a redox equation by oxidation number
Act as my SS1 Chemistry tutor. Walk me through balancing a redox equation by oxidation num
Chemistry at work: Redox reactions in Nigerian industry
Act as my SS1 Chemistry tutor. Explain which Nigerian jobs and industries depend on redox
Explain back: Covalent bonding and the electron pairs atoms share
I have just studied covalent bonding and the electron pairs atoms share in my SS1 Chemistr
Practice set: Drawing dot-and-cross diagrams
Act as my SS1 Chemistry tutor. Give me five practice questions on drawing dot-and-cross di
Exam practice: Metallic bonding and the properties it gives
Act as my SS1 Chemistry teacher setting exam questions. Give me five exam-style questions
Project task: Modelling ionic and covalent structures
Act as my SS1 Chemistry tutor. Set me a short practical or research task on modelling ioni
Explain back: Activation energy and what it represents
I have just studied activation energy and what it represents in my SS1 Chemistry class. Le
Practice set: Enthalpy change and its sign convention
Act as my SS1 Chemistry tutor. Give me five practice questions on enthalpy change and its
Exam practice: Heat of reaction, of neutralisation and of combustion
Act as my SS1 Chemistry teacher setting exam questions. Give me five exam-style questions
Spot my mistake: Giving an exothermic change a positive enthalpy
Act as my SS1 Chemistry tutor. Show me a worked answer on giving an exothermic change a po
Practice set: The effect of temperature and surface area on rate
Act as my SS1 Chemistry tutor. Give me five practice questions on the effect of temperatur
Exam practice: Catalysts and how they work
Act as my SS1 Chemistry teacher setting exam questions. Give me five exam-style questions
Calculation practice: Calculating an average rate from experimental data
Act as my SS1 Chemistry tutor. Walk me through calculating an average rate from experiment
Chemistry at work: The collision theory and what it explains
Act as my SS1 Chemistry tutor. Explain which Nigerian jobs and industries depend on the co
Practice set: Amorphous carbon and the forms it takes
Act as my SS1 Chemistry tutor. Give me five practice questions on amorphous carbon and the
Spot my mistake: Assuming diamond and graphite are different elements
Act as my SS1 Chemistry tutor. Show me a worked answer on assuming diamond and graphite ar
Explain back: Carbon monoxide, and why it is dangerous
I have just studied carbon monoxide, and why it is dangerous in my SS1 Chemistry class. Le
Practice set: Carbonates and hydrogencarbonates
Act as my SS1 Chemistry tutor. Give me five practice questions on carbonates and hydrogenc