chemical formula of sand and chalk
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Answer:
Silicon, Oxygen hope it helps you
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Answer:
Sand: SiO2
Chalk: CaCO3
Explanation:
chalk-Calcium carbonate is a chemical compound with the formula CaCO3 formed by three main elements: carbon, oxygen, and calcium.
sand-The chemical compound silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with a chemical formula of SiO2 and has been known for its hardness since antiquity. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.
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