Question

Write down the names of compounds represented by the formulae and their constituent ions: $\mathbf{\left(}{\mathbf{CaSO}}_{\mathbf{4}}\mathbf{\right)}$

Answer 1

Step 1: Identifying the Chemical name of $\mathbf{\left(}{\mathbf{CaSO}}_{\mathbf{4}}\mathbf{\right)}$:

$\left({\mathrm{CaSO}}_4\right)$ contains one calcium ion $\left({\mathrm{Ca}}^{2+}\right)$ i.e. calcium cation and one sulphate ion $\left({\mathrm{SO}}_4^{2-}\right)$ i.e. sulphate anion.

Thus, chemical name of $\left({\mathrm{CaSO}}_4\right)$ Calcium sulphate.

Step 2: Constituent ions present in $\mathbf{\left(}{\mathbf{CaSO}}_{\mathbf{4}}\mathbf{\right)}$:

Constituent ions in $\left({\mathrm{CaSO}}_4\right)$ are:

1. Calcium ion - $\left({\mathrm{Ca}}^{2+}\right)$
2. Sulphate ion - $\left({\mathrm{SO}}_4^{2-}\right)$