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YouTubeCognito
GCSE Chemistry - Compounds, Molecules & Mixtures (2026/27 exams)
⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Introduction to how atoms exist * Key terms: molecules, compounds, and mixtures 2. Molecules * Definition: Two or more atoms held together by chemical bonds * Examples of molecules made from single elements (e.g., oxygen, nitrogen, chlorine) * Examples of ...
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