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AlCl3+ HgI2 But remember to look back at the d=first step so you don’t flip it the wrong way :<br />
1<br />
2<br />
3<br />
Name of<br />
Cation<br />
Calcium ion<br />
Iron(III) ion<br />
Name of<br />
Anion<br />
Chloride ion<br />
Phosphide<br />
ion<br />
Formula<br />
of Cation<br />
Ca2+<br />
Fe3+ P3-<br />
Formula of<br />
Anion<br />
Formula of<br />
Compound<br />
Name of Compound<br />
Cl - CaCl2 Calcium Chloride<br />
Fep<br />
Sodium ion Sulfide ion Na1+ S2- Na2s<br />
Iron(III) Phosphide<br />
Sodium sulfide<br />
4<br />
5<br />
Aluminum ion Bromide Al 3+ Br1- AlBr3<br />
Aluminum Bromide<br />
Lithium Ion Sulfide ion<br />
LI1+<br />
S2- Li2s Lithium Sulfide<br />
6 Platinum (IV)<br />
ion<br />
7 Magnesium<br />
ion<br />
8<br />
Calcium ion<br />
9 Mercury (II)<br />
ion<br />
Oxide ion<br />
Carbonate<br />
ion<br />
Nitrate<br />
Pt4+<br />
Mg2+<br />
O-2<br />
CO32-<br />
Pt2o4<br />
MgCo3<br />
Ca 2+ NO31- Ca(No3)2<br />
Sulfide ion Hg2+ S2-<br />
10 Thorium (II) Phosphate TH2+<br />
Write the formulas for these ionic compounds<br />
11. Chromium (IV) oxide Cr 4+ O -2 cr 2O 4<br />
Po43-<br />
HgS<br />
Th3(PO4)2<br />
Platinum (IV) Oxide<br />
Magnesium<br />
Carbonate<br />
Calcium Nitrate<br />
Mercury(II) Sulfide<br />
Thorium(II)<br />
Phosphate<br />
12. Chromium (III) oxide cr 5+ O -2 Cr2O3<br />
13. Aluminum oxide Al 5+ 0 -2 Al2O3<br />
14. Nickel (II) bromide Ni 2+ Br 1- NiBr2<br />
15. Silver (I) sulfide Ag+1 S2- Ag2s2<br />
16. Magnesium chloride Mg 2+ Cl - MgCl2<br />
17. Nickel (II) sulfate Ni 2+ SO 4<br />
2- NiSo4<br />
18. Iron (III) phosphate Fe 3+ Po4 3- FePo<br />
19. Potassium dichromate k + CrO 4<br />
20. Lead (IV) hydroxide Pb 4+ Ho<br />
PbHO<br />
K2(CrO4<br />
65