500 prompts matching "Examining the nitrogen content stated on a fertiliser bag"
Exam practice: Applying Boyle's law to a described situation
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Spot my mistake: Using Celsius in a Charles's law calculation
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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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Spot my mistake: Forgetting to convert pressure units before calculating
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Quiz me: Reading mole ratios from a balanced equation
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Explain back: The limiting reagent, and how to identify it
I have just studied the limiting reagent, and how to identify it in my SS1 Chemistry class
Practice set: Calculating the mass of product from the mass of reactant
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Spot my mistake: Using an unbalanced equation in a stoichiometry calculation
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Chemistry at work: Empirical and molecular formulae from composition data
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Quiz me: Strong acids and weak acids
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Exam practice: The pH scale and what it measures
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Spot my mistake: Confusing a strong acid with a concentrated one
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Explain back: The methods of preparing a soluble salt
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Practice set: Making an insoluble salt by mixing two solutions
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Calculation practice: Titration calculations and finding an unknown concentration
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Teach me: How the periodic table is arranged
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Explain back: The trend in atomic radius across a period
I have just studied the trend in atomic radius across a period in my SS1 Chemistry class.
Calculation practice: Predicting a property from an element's position
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Real-life Nigeria: The alkali metals and the halogens as families
Act as my SS1 Chemistry tutor. Show me where the alkali metals and the halogens as familie