Chemistry (Combined Science) · IGCSE · Edexcel · Pearson Edexcel International GCSE Science (Double Award) — Chemistry (Modular) — 4XSD1 · Specification point · 2.22 · Inorganic chemistry: Part 1 · Acids, bases and salt preparations
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| Learners should: |
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2.22 understand that an acid is a proton donor and a base is a proton acceptor |