Answer:
The answer to your questions is: C. Sulfides
Explanation:
A. Phosphates these compounds do not have sulphur, they are composed by phosphate and oxygen, So this answer is wrong.
B. Sulfates are formed by sulphur and oxygen, not for a metal, then this is not the right answer.
C. Sulfides are molecules formed by a metal and sulphur, this is the anwser to the question.
D. Silicates are formed by sillicon and oxygen, this option is incorrect.
B.Mg(OH)2 (the active ingredient in milk of magnesia)
If you know the Table of elements you can see it on.
Valence electrons determine its valency ? (The group, as in its oxidation state and stability)
