Question

ionic & covalent compounds worksheet
write formulas for the following compounds and classify as ionic (i) or covalent (c)

1. lithium chloride
2. phosphorus
3. silver nitrate
4. zinc hydroxide
5. carbon disulfide
6. iron(iii) phosphate
7. copper(i) sulfide
8. tin(iv) fluoride
9. barium dichromate
10. beryllium nitride
11. sulfur trioxide
12. calcium bromide
13. lead(iv) carbonate
14. carbon tetrafluoride
15. strontium sulfide
16. aluminum acetate
17. sodium bicarbonate
18. tin(ii) iodide
19. boron trichloride
20. dibromine pentoxide
21. ammonia
22. silicon dioxide
23. tetrasulfur tetranitride
24. magnesium phosphide
25. copper(i) bisulfite

Explanation:

Step1: Identify compound type & formula

Classify as ionic (I) or covalent (C); write formula:

1. Iridium chloride (I): $\text{IrCl}_3$ (common iridium(III) form)
2. Permanganate (I): $\text{MnO}_4^-$ (polyatomic ion; ionic in salts)
3. Silver silicate (I): $\text{Ag}_2\text{SiO}_3$
4. Zinc hydroxide (I): $\text{Zn(OH)}_2$
5. Carbon disulfide (C): $\text{CS}_2$
6. Iron(III) phosphate (I): $\text{FePO}_4$
7. Copper(II) iodide (I): $\text{CuI}_2$
8. Tin(IV) fluoride (I): $\text{SnF}_4$
9. Barium dichromate (I): $\text{BaCr}_2\text{O}_7$
10. Beryllium nitrite (I): $\text{Be(NO}_2\text{)}_2$
11. Sulfur trioxide (C): $\text{SO}_3$
12. Calcium bromide (I): $\text{CaBr}_2$
13. Lead(IV) carbonate (I): $\text{Pb(CO}_3\text{)}_2$
14. Carbon tetrafluoride (C): $\text{CF}_4$
15. Strontium sulfide (I): $\text{SrS}$
16. Aluminum acetate (I): $\text{Al(C}_2\text{H}_3\text{O}_2\text{)}_3$
17. Sodium bicarbonate (I): $\text{NaHCO}_3$
18. Tin(II) iodide (I): $\text{SnI}_2$
19. Boron trichloride (C): $\text{BCl}_3$
20. Dibromine pentoxide (C): $\text{Br}_2\text{O}_5$
21. Ammonia (C): $\text{NH}_3$
22. Silicon dioxide (C): $\text{SiO}_2$
23. Tetrasulfur tetranitride (C): $\text{S}_4\text{N}_4$
24. Magnesium phosphide (I): $\text{Mg}_3\text{P}_2$
25. Copper(I) bisulfite (I): $\text{CuHSO}_3$

Answer:

1. $\text{IrCl}_3$, I
2. $\text{MnO}_4^-$, I
3. $\text{Ag}_2\text{SiO}_3$, I
4. $\text{Zn(OH)}_2$, I
5. $\text{CS}_2$, C
6. $\text{FePO}_4$, I
7. $\text{CuI}_2$, I
8. $\text{SnF}_4$, I
9. $\text{BaCr}_2\text{O}_7$, I
10. $\text{Be(NO}_2\text{)}_2$, I
11. $\text{SO}_3$, C
12. $\text{CaBr}_2$, I
13. $\text{Pb(CO}_3\text{)}_2$, I
14. $\text{CF}_4$, C
15. $\text{SrS}$, I
16. $\text{Al(C}_2\text{H}_3\text{O}_2\text{)}_3$, I
17. $\text{NaHCO}_3$, I
18. $\text{SnI}_2$, I
19. $\text{BCl}_3$, C
20. $\text{Br}_2\text{O}_5$, C
21. $\text{NH}_3$, C
22. $\text{SiO}_2$, C
23. $\text{S}_4\text{N}_4$, C
24. $\text{Mg}_3\text{P}_2$, I
25. $\text{CuHSO}_3$, I