Question

write the formula of the following Oxide ion , Sulphide ion , Carbonate ion , Sulphate ion , Alumunium ion and iron (2) ion

Answer 1

$s 8 -$

$o {}^{ - 2}$

Answer 2

O²-
$oxide \: ion$

S ²-
$sulphide \: ion$

CO3 ²-
$carbonate \: ion$
So4 ²-
$sulphate \: ion$

Al ³+
$alumimium \: ion$
Fe²+
$iron \: (ii) \: ion$