0
Anonymous
Mn: 1s22s22p63s23p63d54s2 Mn2+: 1s22s22p63s23p63d5
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3000 plus 50 plus 0.009 in standard notation is 3,050.009
It has to be interval notation
20,000 + 3,400,000
78.34
8H+ + MnO4- + 5Fe2+--> 5Fe3+ + Mn2+ + 4H20