Answer this question plz its urgent

1.	Answer this question plz its urgent
Answer» Dude, mark me brainliest let the oxidation NUMBER of the atom be 'x' a) Ca (loses 2 electrons, so, +2) +2 + 2(+1+x-6) = 0 (over all charge of the compound is zero, and I've MULTIPLIED by 2, since there are two entities of HCO₃) +2 + 2 + 2x - 12 = 0 2x = +8 x= +4 b) sodium loses 1 electron, 2 sodium atoms LOSE 2 electrons Oxygen gains 2 electrons, 4 oxygen atoms gain 8 electrons +2 + x - 8 = 0 x = +6

Answer»

Dude, mark me brainliest

let the oxidation NUMBER of the atom be 'x'

a) Ca (loses 2 electrons, so, +2)

+2 + 2(+1+x-6) = 0 (over all charge of the compound is zero, and I've MULTIPLIED by 2, since there are two entities of HCO₃)

+2 + 2 + 2x - 12 = 0

2x = +8

x= +4

b) sodium loses 1 electron, 2 sodium atoms LOSE 2 electrons

Oxygen gains 2 electrons, 4 oxygen atoms gain 8 electrons

+2 + x - 8 = 0

x = +6

Discussion