Question

Classify elements or compounds iron,copper,silver,calcium carbonate, nacl

Answer 1

Hey mate there is your answer :
Iron: element
Copper : element
Silver: element
Calcium carbonate : Compound
Common salt (NaCl) : compound

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Answer 2

Answer: Elements are iron, copper and silver.

Compounds are Calcium carbonate and NaCl.

Explanation: Elements are the ones which cannot be broken down into smaller substances.

Compounds are the ones which are formed by combination of two or more elements in a fixed ratio by chemical means.

From the above given examples, 3 can be categorized under elements and 2 can be categorized under compounds.

Iron, Copper and Silver are elements.

Calcium carbonate ( $CaCO_3$ ) and sodium chloride ( NaCl ) are compounds.