Give a name to the substance, determine the oxidation state of atoms in the compound: (NH4) 2SO4

Compound formula: (NH4) 2SO4 – ammonium sulfate.

The oxidation states of atoms of chemical elements in the compound:

N (nitrogen): -3,
H (hydrogen): +1,
S (sulfur): +6,
O (oxygen): -2.
Check: (-3 + 1 * 4) * 2 + 6 + (-2) * 4 = (-3 + 4) * 2 + 6 + (-8) = 2 + 6 – 8 = 8 – 8 = 0 ( right).



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