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Atoms, elements and compounds - AQA - BBC Bitesize
WebA chemical formula is used to represent an element or compound in balanced chemical equations. The formula for most elements is just its chemical symbol. For example: … WebAtoms are the building blocks of everything. Atoms can form strong bonds with each other, making molecules. Symbols and formulae Letters from the alphabet are used to represent chemical... shirley ann johnson obituary
10 Golden Rules for Working Safely in the Lab for Biologists
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