Question

An element X forms a compound XS with sulphide ion.
a)what will be the formula of X with nitrate ion and carbonate ion?(show the working)
b)express X in ionic form

Answer 1

$$\begin{gathered} TheelementformsXS \\ Thatmeans \\ {X}^2{S}^2 \\ crossmultiply \\ {X}_2{S}_2=XS \\ a)Fornitrateion \\ {X}^{2}N{O_3}^1 \\ crossmultiply \\ {X}_1(N{O}_3{)}_2=X(N{O}_3{)}_2 \\ Forcarbonateion \\ {X}^{2}C{O_3}^2 \\ crossmultiply \\ {X}_2(C{O}_3{)}_2=XC{O}_3 \\ b)X^{2+}istheionicform \end{gathered}$$