500 prompts matching "The salts used in Nigerian agriculture and food"
Quiz me: The branches of chemistry
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Spot my mistake: Treating chemistry as a subject only about dangerous substances
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Practice set: Diffusion, and what it shows about particles
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Exam practice: Brownian motion as evidence for moving particles
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Exam practice: The electron configuration of the first twenty elements
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Spot my mistake: Confusing mass number with relative atomic mass
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Calculation practice: Calculating relative atomic mass from isotopic abundance
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Quiz me: Valency, and how it is worked out from configuration
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Real-life Nigeria: Why the noble gases are unreactive
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Spot my mistake: Confusing evaporation with boiling
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Quiz me: The symbols of the common elements
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Practice set: Naming a compound from its formula
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Spot my mistake: Changing a formula instead of a coefficient when balancing
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Real-life Nigeria: Chemical formulae on Nigerian product labels
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Quiz me: The law of constant composition
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Practice set: Verifying a law of combination from given data
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Exam practice: Gay-Lussac's law of combining volumes
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Calculation practice: Calculating masses that combine in a fixed ratio
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Quiz me: Avogadro's number and what it counts
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Exam practice: The volume one mole of any gas occupies at s.t.p.
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