As you know, the sum of the oxidation states of all elements in any compound must be zero.

| May 28, 2021 | education

As you know, the sum of the oxidation states of all elements in any compound must be zero. Based on this position, determine the oxidation states of each element in the compounds, the formulas of which are: NH4NO3, HClO4, KCl, BaMnO4, Na2SO3.

1) NH4NO3 – the oxidation state of hydrogen +1, oxygen -2, one nitrogen atom +5, and the second -3. In the sum, N (+5) + H (+4) + N (-3) + O (-6) = 0.
2) HClO4 – oxidation state of hydrogen +1, oxygen -2, chlorine +7. In the sum H (+1) + Cl (+7) + O (-8) = 0.
3) KCl – oxidation state of potassium +1, chlorine -1. In the sum K (+1) + Cl (-1) = 0.
4) BaMnO4 – oxidation state of potassium barium +2, manganese +6, oxygen -2. In the sum, Ba (+2) + Mn (+6) + O (-8) = 0.
5) Na2SO3 – oxidation state of sodium +1, sulfur +4, oxygen -2. In the sum Na (+2) + S (+4) + O (-6) = 0.



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