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What is 1 + 3?
halogens (e.g. F, CI, Br) are often found in salts (e.g. NaF, NaCI, KBr)
heterogeneous mixture is a mixture in which properties and composition differ from point to pint
hom, eo, -o/same, alike
homogeneous mixture is a mixture in which properties and compsition are the same throughout