Umber method: Example 1: HCl + KMnO.
Solution:
KCI + MnCl2 + Cl2 + H2O oxidination number
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In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.