Asked by sam

Consider the following substance:
Al2(SO4)3
What is the oxidation number of:
a) aluminum
b) sulfur
c)oxygen

Answers

Answered by DrBob222
Here is a good site to learn how to do these. Oxygen is -2 for each atom.
http://www.chemteam.info/Redox/Redox-Rules.html
<<<<<<<<<<>>>>>>>>>>>>
First : Al in III A

>>>> Al = 3+

Second : O must be 2-

Third : count and S = 6+
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