Question

Give the systematic name for each of the following compounds:
(a) ${\text{Cu}}_2\text{S}$$andCuS$
(b) ${\text{Na}}_{\text{2}}{\text{SO}}_{\text{4}}$
(c)${\text{As}}_{\text{4}}{\text{O}}_{\text{6}}$
(d)${\text{ZrCl}}_{\text{4}}$
(e)${\text{Cl}}_{\text{2}}{\text{O}}_{\text{7}}$
(f)${\text{Ga}}_{\text{2}}\text{O}$

Short answer

1. The systematic names for the following compounds arecopper $\left(|\right)$sulphide and copper$\left(\left|\right|\right)$sulphide.
2. The systematic name for the following compound is sodium sulfate.
3. The systematic name for the following compound is tetraarsenic hexaoxide.
4. The systematic name for the following compound iszirconium $\left(IV\right)$chloride.
5. The systematic name for the following compound is (di)chlorine hept(a)oxide.
6. The systematic name for the following compound is gallium$\left(|\right)$oxide.

Step-by-step solution

Copper cations

Two substances are ${\text{Cu}}_{\text{2}}S$and $\text{CuS}$.

In addition to metals, sulphur possesses an oxidation state. The distinct systematic nomenclatures that can be deduced from this are is copperlocalid="1663397159938" $\left(|\right)$sulphide and copperlocalid="1663397167339" $\left(\left|\right|\right)$sulphide. Although sulfide "salts" are precipitates, consider the ionic structure; in the first case, the charge islocalid="1663397173997" $+2$shared between two copper cations.

Sodium sulfate

The formula is ${\text{Na}}_{\text{2}}{\text{SO}}_{\text{4}}$. The systematic name for this compound is sodium sulfate.

Tetraarsenic hexaoxide

The formula is ${\text{As}}_{\text{4}}{\text{O}}_{\text{6}}$. The systematic molecule name for this compound is tetraarsenic hexaoxide.

Ionic structure

The formula is ${\text{ZrCl}}_{\text{4}}$. It's reasonable to assume that the chemical has an ionic structure, given that its systematic name is zirconiumrole="math" localid="1663396975108" $\left(IV\right)$chloride.

(Di)chlorine hept(a)oxide.

The formula is ${\text{Cl}}_{\text{2}}{\text{O}}_{\text{7}}$. The systematic molecule name for this compound is (di)chlorine hept(a)oxide.

Gallium(I) oxide

The formula is${\text{Ga}}_{\text{2}}\text{O}$. The systematic molecule name for this compound is galliumdata-custom-editor="chemistry" $\left(|\right)$oxide.