Question

calculate the oxidation state of
(a) Mg in Mg(HCO3)
(b) P in P2O5
(c) MN in MnO4 2-

Answer 1

@dan815 @Abmon98 @tester97 @abb0t

Answer 2

Group 2 metals are always +2
The sum of the oxidation states of all the atoms or ions in a neutral compound is zero.
O is usually -2, -2*5=-10 so P has a charge of +5
c) The sum of the oxidation states of all the atoms in an ion is equal to the charge on the ion. MnO4-
O is usually -2, -2*4=-8 overall charge is -1 so Mn has to be +7 so -8+7=-1

Answer 3

@yanee

Answer 4

wats a and b

Answer 5

@Abmon98 wats a and b

Answer 6

read what i wrote above @devilqwerty

Answer 7

i can t get it @Abmon98

Answer 8

Magnesium is a group 2 element and from the rules of oxidation number
All Group 2 elements have an oxidation number of +2

Answer 9

so is both a and b +2

Answer 10

no thats for and only, for b P has an oxidation number of +5

Answer 11

a only**

Answer 12

thank u