Question

write valence formula of calcium carbonate​

Answer 1

Answer:

The valency of calcium is +2 in the compound CaCO3 or Calcium Carbonate

Explanation:

It means that calcium atom has two free electrons in its outermost shell that is easily transferred to the CO3 or carbonate group, which has -2 valency or the space for 2 more electrons to complete the octet on the outermost shell.

Answer 2

Answer:

$\huge \bf \color{red} \underline \mathfrak{answer}$

$\underline \mathfrak{Calcium carbonate is a calcium salt with formula CCaO3. It has a role as an antacid, a food colouring, a food firming agent and a fertilizer. It is a calcium salt, a carbonate salt and a one-carbon compound.}$

Calcium carbonate is a calcium salt with formula CCaO3. It has a role as an antacid, a food colouring, a food firming agent and a fertilizer. It is a calcium salt, a carbonate salt and a one-carbon compound.