(d) apex
The chemical symbol for nitrogen is N and it used so that compounds can be given a chemical formula such as NH3 and can be represented in chemical equations for the ease of identifying what elements are in what compounds.
(d) is not a symbol used in chemical equations. The symbols (s) represents a solid, (g) represents a gas, and (aq) represents an aqueous solution.
So it is wrong equation .Symbols are very important
The chemical symbol of silver is Ag: chemical symbols are used in chemical formulae and equations.
Right and down the symbol of a chemical element.
The chemical symbol of calcium is Ca.
The symbol on the periodic table means the abrevitation of the chemical element. For example, the chemical element symbol Pm stands for Promethium.
Each chemical element has a different chemical symbol formed from one or two letters: H for hydrogen, U for uranium, Cl for chlorine, Ar for argon, etc. Symbols are used for simplicity in writing equations, etc. The chemical symbol can be considered as a code.
Because to write chemical equations you need a short way of referring to an element.
The symbol for a substance that is soluble is (aq) which means aqueous or in aqueous solution.
THE PLUS SIGN (+)an example is: sodium + oxygen --> sodium oxideNa2 + O --> Na2O
The symbol used to represent the electric field in equations is ( \vec{E} ).