Question

What is the name for the covalent compound whose chemical formula is ${{H}_{2}}S$?

Answer 1

Hint : The name of the covalent compound can be found out easily by the element it has. The name of the compound can be found out by the charges it has. If any element has a negative charge, the name of that element change, and (ide) is added to it.

Complete Step By Step Answer:
The name of the given compound here is Hydrogen Sulfide or Hydrogen Sulphide.
In this compound, we have H, which is hydrogen, and S which is sulphur. Now, any element gets its name changed if it has negative power. Like, hydrogen becomes hydride, oxygen becomes oxide, and so on.
In the compound ${{H}_{2}}S$ , hydrogen has one positive $\left( ^{+1} \right)$ charge to its one atom and sulphur has two negative $\left( ^{-2} \right)$ charge to itself. Thus, the name of hydrogen remains as it is and sulphur becomes sulfide (sulphide).
In the compound, two atoms of hydrogen are attached to one sulfur atom. Because one hydrogen has only one positive charge, only one hydrogen cannot attach with $\left( ^{-2} \right)$ sulphur. Thus the chemical formula becomes ${{H}_{2}}S$.
Hydrogen sulfide (sulfide) at normal temperature and pressure exists as a gas. This gas is really toxic for human beings. It is often produced by volcanoes and also contributes to acid rain.

Note :
To find out the name of any compound, the name of the elements must be known first. If any element in the compound has a negative charge then the compound is named accordingly. The most important thing is to remember the name of the elements of the compound.