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The 5-Second Trick For các trường nội trú nhất tại tphcm

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A substance that only consists of one particular sort or class of atom is said to become a component. As it can't be altered by physical or chemical means to stop working or generate new substances, an element is usually a pure substance. The majority of components are metals, nonmetals, https://andrerdsdo.izrablog.com/36795512/the-smart-trick-of-truong-noi-tru-tot-nhat-o-dia-ban-tphcm-that-no-one-is-discussing

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