Carbon dioxide is a gas,whereas silica is a s | vedclass

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(A) $CO_2$ exists as discrete,linear molecules held together by weak van der Waals forces,making it a gas at room temperature.In contrast,$SiO_2$ (sil

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$CO_2$ consists of discrete covalent molecules,whereas silica has a continuous tetrahedral network structure.

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(A) $CO_2$ exists as discrete,linear molecules held together by weak van der Waals forces,making it a gas at room temperature.In contrast,$SiO_2$ (silica) forms a giant three-dimensional covalent network structure where each silicon atom is bonded to four oxygen atoms in a tetrahedral geometry.This continuous network requires a large amount of energy to break,resulting in a high melting point and a solid state at room temperature.

Carbon dioxide is a gas,whereas silica is a solid because ...........

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