Assign oxidation numbers to each element in mgso4. (magnesium sulfate)
which element has the highest oxidation state?

a. mg
b. s
c. so4
d. all the same.

The answer to your question is: letter b Sulphur

Explanation:

Remember that in neutral molecules the sum of the oxidation numbers equals zero.

                               Mg⁺²S⁺⁶O⁻²₄

Magnesium = +2

Sulphur = +6

Oxygen = -2 x 4 = -8

a) the particles of the chair are strongly held together.

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