Question

please tell the correct answer​

Answer 1

Answer:

i) k Au Cl 4

k = +1

au = +7

cl = -2

ii) Al(Oh)4

Al = +3

(Oh) = (+1-2) =1

iii) Mn2O3

Mn2= +4

O3 = 2(-2)

iv) Na2cr2O7

Na2 = +1

CR = +6

O= -2