Question

Write the formulae of the following compounds:
a. Sodium hexanitrito N cobaltate (III)
b. Tetraaquodichlorochromium (III) chloride

Answer 1

a. Sodium Hexanitro- Cobaltate(III)

$\left[N{a}_{3}Co\right(N{O}_2{)}_6]$

b.. tetraaquodi chloro chromium (III) Chloride.

$\left[C{r}^{3+}\right(H_{2}O{)}_{4}C{l}_2{]}^{+}C{l}^{-}$