What is the chemical name for the compound with the formula Na2S?
2 answers:
Answer : The correct option is, sodium sulfide
Explanation :
The given formula is,
The rules for the naming of the binary molecular compound are :
- First element in the formula is named first and keep its element name.
- Gets a prefix if there is a subscript on it.
- Second element is named second.
- Use the root of the element name plus suffix (-ide).
- Always use a prefix on the second element.
In the given formula, the first element is (Na) sodium and the second element is sulfur. Thus, the chemical name of the compound is, sodium sulfide.
Therefore, the chemical name for the compound with the formula is, sodium sulfide.
You might be interested in
Answer : The formal charge on the C is, (-1) charge.
Explanation :
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
The given molecule is,
As we know that carbon has '4' valence electrons and hydrogen has '1' valence electron.
Therefore, the total number of valence electrons in = 4 + 3(1) + 1 = 8
According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.
Now we have to determine the formal charge on carbon atom.
Formula for formal charge :
The formal charge on the C is, (-1) charge.
