8. It is widely present in various forms such as sand, quartz and flint. name
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Answer is Silicon dioxide
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The chemical compound silica, also known as silicon dioxide, is known for its hardness since the 16th century. It is found in nature in many different forms, such as flint, quartz, and opal.
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The chemical compound silica, also known as silicon dioxide, is known for its hardness since the 16th century. It is found in nature in many different forms, such as flint, quartz, and opal. Silica (quartz): Silica, SiO2, is a chemical compound that is composed of one silicon atom and two oxygen atoms.
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