Question

Write the formulas for the following compounds: (a) rubidium nitrite, (b) potassium sulfide, (c) sodium hydrogen sulfide, (d) magnesium phosphate, (e) calcium hydrogen phosphate, (f) lead(ll) carbonate, (g) tin(ll) fluoride, (h)ammonium sulfate, (i) silver perchlorate, (j) boron trichloride.

Answer 1

The formulas for the given compounds are based on the charges of the ions, ensuring the overall charge is neutral. For instance, rubidium nitrite is RbNO₂, potassium sulfide is K₂S, and magnesium phosphate is Mg₃(PO₄)₂.

Step-by-step explanation:

To write the formulas for the given compounds, we need to consider the charges of the ions that they consist of. The ions must combine in a way that the overall charge of the compound is neutral. Here are the formulas for the requested compounds:

• (a) Rubidium nitrite: RbNO₂
• (b) Potassium sulfide: K₂S
• (c) Sodium hydrogen sulfide: NaHS
• (d) Magnesium phosphate: Mg₃(PO₄)₂
• (e) Calcium hydrogen phosphate: CaHPO₄
• (f) Lead(II) carbonate: PbCO₃
• (g) Tin(II) fluoride: SnF₂
• (h) Ammonium sulfate: (NH₄)₂SO₄
• (i) Silver perchlorate: AgClO₄
• (j) Boron trichloride: BCl₃

Each formula corresponds to the stoichiometry dictated by the charges of the ions involved.

Answer 2

All are having different valent cation and anion like mono,di and trivalent polyatomic ions .

A. RbNO3

B. K2S

C. NaHS

D. Mg3(PO4)2 formed by divalent Mg+2 and trivalent PO43-

E. CaHPO4

F. PbCO3 , lead is in Pb+2 form

G. SnF2

H. (NH4)2SO4

I. AgClO4

J. BCl3