The mole and the Avogadro constant — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Moles, gas volumes and limiting reactants are covered; empirical formulas, yield/purity and solution-titration calculations go beyond the listed outcomes.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
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