434 prompts matching "Exam practice: Empirical and molecular formula from composition"
Explain back: Petrochemicals and the refining of crude oil
I have just studied petrochemicals and the refining of crude oil in my SS1 Chemistry class
Real-life Nigeria: Siting a chemical plant, and what must be considered
Act as my SS1 Chemistry tutor. Show me where siting a chemical plant, and what must be con
Explain back: Changes of state and the names given to them
I have just studied changes of state and the names given to them in my SS1 Chemistry class
Explain back: Atomic number and mass number
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Real-life Nigeria: Isotopes in Nigerian medicine and agriculture
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Explain back: Ions, and how an atom becomes one
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Explain back: Temperature and the kinetic energy of particles
I have just studied temperature and the kinetic energy of particles in my SS1 Chemistry cl
Real-life Nigeria: The kinetic theory in Nigerian cooking and drying
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Real-life Nigeria: Chemical formulae on Nigerian product labels
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Calculation practice: Calculating masses that combine in a fixed ratio
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Explain back: Molar mass and how it is found
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Calculation practice: Calculating the number of particles in a given mass
Act as my SS1 Chemistry tutor. Walk me through calculating the number of particles in a gi
Chemistry at work: Why systematic naming matters in trade and medicine
Act as my SS1 Chemistry tutor. Explain which Nigerian jobs and industries depend on why sy
Calculation practice: Calculating a new volume after a change of pressure
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Real-life Nigeria: The gas laws in Nigerian diving and gas cylinders
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Explain back: Standard temperature and pressure
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Calculation practice: Calculating the volume of a gas at s.t.p.
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Explain back: The limiting reagent, and how to identify it
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Calculation practice: Calculating the volume of gas produced in a reaction
Act as my SS1 Chemistry tutor. Walk me through calculating the volume of gas produced in a
Explain back: What a base is, and what an alkali is
I have just studied what a base is, and what an alkali is in my SS1 Chemistry class. Let m