Question

Write the formula of the following using criss - cross method __________________________________________________________________ a) Sodium zincate b) Calcium nitrate c) Copper (I) oxide d) Iron (III) sulphide __________________________________________________________________

Answer 1

Answer:

a)H4Na2O4Zn

b)Ca(NO3)2

c)Cu

i) O2–

d) Fe

III)S2−

Answer 2

Answer:

your solution is in the image attached above