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Truong noi tru tot nhat o tphcm for Dummies

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A compound that only has 1 variety or course of atom is said to be an element. Because it can't be altered through Actual physical or chemical implies to stop working or generate new substances, an element is usually a pure substance. The vast majority of aspects are metals, nonmetals, https://harryp095bqe8.win-blog.com/profile

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