What is the formula for the compound formed from the following polyatomic ions: nh4+, so32-?
a. nh4so3
b. nh6so3
c. (nh4)2so3
d. nh4(so3)2

The correct option is C) .

Explanation: The given ions are ammonium ion with +1 charge and sulfite ion with -2 charge. When the ions combined to form a compound then over all charge becomes. The over all charge becomes zero only if the positive charge equals to the negative charge.

As the ammonium ion has +1 charge and the sulfite ion has -2 charge, two ammonium ions are required for each sulfite ion. Since two ions of ammonium ion are required for each sulfite ion, the subscript of ammonium ion will be 2 and that of sulfite ion is 1. If the subscript is 1 then its not written.

Hence, the compound formula will be and the correct option is C.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).