500 prompts matching "Fractional crystallisation and the uses made of it"
Explain back: The scientific method as chemists use it
I have just studied the scientific method as chemists use it in my SS1 Chemistry class. Le
Exam practice: The links between chemistry and the other sciences
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Practice set: Isotopes, and why they exist
Act as my SS1 Chemistry tutor. Give me five practice questions on isotopes, and why they e
Practice set: Melting and boiling, and the energy each requires
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Exam practice: Naming acids and the salts derived from them
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Exam practice: The ideal gas equation and the gas constant
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Exam practice: The trend in metallic and non-metallic character
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Exam practice: The periodic table and separation techniques reviewed
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Practice set: Oxidation numbers and how to assign them
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Exam practice: Identifying the oxidising and the reducing agent in a reaction
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Exam practice: Catalysts and how they work
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Explain back: The structure that gives each allotrope its properties
I have just studied the structure that gives each allotrope its properties in my SS1 Chemi
Practice set: Drugs and medicines and their chemical basis
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Exam practice: Fertilisers and their effect on crop yield
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Exam practice: The common radicals and the charges they carry
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Explain back: How position in the table relates to electron configuration
I have just studied how position in the table relates to electron configuration in my SS1
Exam practice: The ideal gas equation and the molar gas constant
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Spot my mistake: Changing a formula instead of a coefficient when balancing
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Calculation practice: Calculating a new volume after a change of pressure
Act as my SS1 Chemistry tutor. Walk me through calculating a new volume after a change of
Calculation practice: A mixed set of second-term chemistry calculations
Act as my SS1 Chemistry tutor. Walk me through a mixed set of second-term chemistry calcul