Question

What is the oxidation state of each element in the compound CaSO4? Include + or - in your answers as appropriate.

The oxidation state of calcium is
.

The oxidation state of sulfur is
.

The oxidation state of oxygen is
.

Answer 1

Ca = +2, S = +6 and O = -2

Step-by-step explanation:

EDMENTUM

Answer 2

Answer:- Ca = +2, S = +6 and O = -2

Solution:- There are certain rules for oxidation numbers. As per the rule, oxidation number of alkaline earth metals in their compounds is +2.

Oxidation number of oxygen in it's compounds is -2(except peroxides) and the sum of oxidation numbers of all the elements of a neutral compound is zero.

Since, Ca is +2 and O is -2, the oxidation number of S could easily be calculated for the given compound as:

Let's say the oxidation number of S in
`CaSO_4` is
`x` . Let's make the algebraic equation and solve it.

`2+x+4(-2)=0`

`2+x-8=0`

`x-6=0`

`x=+6`

Hence. the oxidation number of Ca is +2, O is -2 and S is +6.