Question

Write chemical formula of given compounds by criss cross method. 1.Calcium Carbonate​

Answer 1

Answer:Ca × CO3. +2 -2. chemical formula of the compound. CaCO3.

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Answer 2

Calcium = Ca

Carbonate = $\sf CO_3$

By criss cross method,

$\rm \therefore Ca \qquad \qquad \qquad CO_3 \\ \implies \rm CaCO_3$