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Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

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Explains what atomic orbitals are and discusses their shapes and relative energies. This is essential pre-reading before you go on to any of the remaining topics in this section.

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Introduction to Matter Lesson 2

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Questions for learners not holding a GCSE in Chemistry

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Questions for learners not holding a GCSE in Chemistry