Question

all ionic compounds

1. write the formula for each compound (don’t forget to “check the charges”)
2. calcium acetate
3. potassium chloride
4. ammonium carbonate
5. sodium nitride
6. titanium (iv) hypochlorite
7. iron (iii) sulfide
8. zinc dichromate
9. platinum (iv) oxide
10. aluminium hydroxide
11. mercury (ii) nitrate
12. strontium fluoride
13. tin (iv) hydrogen oxalate
14. calcium peroxide
15. gold (i) sulfate
16. lead (iv) thiocyanate
17. nickel (iii) sulfide

Explanation:

Step1: Identify ions and their charges

Calcium ion ($Ca^{2 + }$) and acetate ion ($C_{2}H_{3}O_{2}^{-}$). To balance charges, we need 2 acetate ions for 1 calcium ion.
$Ca(C_{2}H_{3}O_{2})_{2}$

Step2: Identify ions and their charges

Potassium ion ($K^{+}$) and chloride ion ($Cl^{-}$). They combine in a 1:1 ratio.
$KCl$

Step3: Identify ions and their charges

Ammonium ion ($NH_{4}^{+}$) and carbonate ion ($CO_{3}^{2 - }$). We need 2 ammonium ions to balance the - 2 charge of carbonate.
$(NH_{4})_{2}CO_{3}$

Step4: Identify ions and their charges

Sodium ion ($Na^{+}$) and nitride ion ($N^{3 - }$). We need 3 sodium ions to balance the - 3 charge of nitride.
$Na_{3}N$

Step5: Identify ions and their charges

Titanium(IV) ion ($Ti^{4+}$) and hypochlorite ion ($ClO^{-}$). We need 4 hypochlorite ions to balance the + 4 charge of titanium(IV).
$Ti(ClO)_{4}$

Step6: Identify ions and their charges

Iron(III) ion ($Fe^{3+}$) and sulfide ion ($S^{2 - }$). To balance charges, the ratio is 2:3.
$Fe_{2}S_{3}$

Step7: Identify ions and their charges

Zinc ion ($Zn^{2+}$) and dichromate ion ($Cr_{2}O_{7}^{2 - }$). They combine in a 1:1 ratio.
$ZnCr_{2}O_{7}$

Step8: Identify ions and their charges

Platinum(IV) ion ($Pt^{4+}$) and oxide ion ($O^{2 - }$). We need 2 oxide ions to balance the + 4 charge of platinum(IV).
$PtO_{2}$

Step9: Identify ions and their charges

Aluminium ion ($Al^{3+}$) and hydroxide ion ($OH^{-}$). We need 3 hydroxide ions to balance the + 3 charge of aluminium.
$Al(OH)_{3}$

Step10: Identify ions and their charges

Mercury(II) ion ($Hg^{2+}$) and nitrate ion ($NO_{3}^{-}$). We need 2 nitrate ions to balance the + 2 charge of mercury(II).
$Hg(NO_{3})_{2}$

Step11: Identify ions and their charges

Strontium ion ($Sr^{2+}$) and fluoride ion ($F^{-}$). We need 2 fluoride ions to balance the + 2 charge of strontium.
$SrF_{2}$

Step12: Identify ions and their charges

Tin(IV) ion ($Sn^{4+}$) and hydrogen oxalate ion ($HC_{2}O_{4}^{-}$). We need 4 hydrogen - oxalate ions to balance the + 4 charge of tin(IV).
$Sn(HC_{2}O_{4})_{4}$

Step13: Identify ions and their charges

Calcium ion ($Ca^{2+}$) and peroxide ion ($O_{2}^{2 - }$). They combine in a 1:1 ratio.
$CaO_{2}$

Step14: Identify ions and their charges

Gold(I) ion ($Au^{+}$) and sulfate ion ($SO_{4}^{2 - }$). We need 2 gold(I) ions to balance the - 2 charge of sulfate.
$Au_{2}SO_{4}$

Step15: Identify ions and their charges

Lead(IV) ion ($Pb^{4+}$) and thiocyanate ion ($SCN^{-}$). We need 4 thiocyanate ions to balance the + 4 charge of lead(IV).
$Pb(SCN)_{4}$

Step16: Identify ions and their charges

Nickel(III) ion ($Ni^{3+}$) and sulfide ion ($S^{2 - }$). To balance charges, the ratio is 2:3.
$Ni_{2}S_{3}$

Answer:

1. $Ca(C_{2}H_{3}O_{2})_{2}$
2. $KCl$
3. $(NH_{4})_{2}CO_{3}$
4. $Na_{3}N$
5. $Ti(ClO)_{4}$
6. $Fe_{2}S_{3}$
7. $ZnCr_{2}O_{7}$
8. $PtO_{2}$
9. $Al(OH)_{3}$
10. $Hg(NO_{3})_{2}$
11. $SrF_{2}$
12. $Sn(HC_{2}O_{4})_{4}$
13. $CaO_{2}$
14. $Au_{2}SO_{4}$
15. $Pb(SCN)_{4}$
16. $Ni_{2}S_{3}$