Homework #1: Ionic Formulas Practice Problems

HOMEWORK #1: IONIC FORMULAS PRACTICE PROBLEMS

1. Write the formula for each compound below:

a. magnesium iodide MgI2

b. aluminum oxide Al2O3

c. ammonium sulfate (NH4)2SO4

d. calcium hydroxide Ca(OH)2

e. rubidium phosphide Rb3P

f. barium nitrate Ba(NO3)2

g. nickel (III) acetate Ni(C2H3O2)3

h. lead(IV) carbonate Pb(CO3)2

i. potassium chromate K2CrO4

j. iron (II) permanganate Fe(MnO4)2

k. cesium peroxide Cs2O2

l. barium thiosulfate BaS2O3

2. Name each compound below.

a. AlPO3 aluminum phosphite b. BeF2 beryllium fluoride

c. Ba(ClO)2 barium hypochlorite d. MgI2 magnesium iodide

e. Ca(NO2)2 calcium nitrite f. Zn(HCO3)2 zinc hydrogen carbonate

** g. Fe2S3 iron (III) sulfide ** h. FeS iron(II) sulfide

EXTRA PRACTICE WITH ROMAN NUMERALS

Name the following ionic compounds:

1) NH4Cl ___ammonium chloride______

2) Fe(NO3)3 ___iron(III) nitrate______

3) TiBr3 ______titanium(III) bromide______

4) Cu3P ______copper(I) phosphide______

5) SnSe2 _____tin(IV) selenide______

6) GaAs ______gallium arsenide______

7) Pb(SO4)2 ___lead(IV) sulfate______

8) Be(HCO3)2 ___beryllium hydrogen carbonate______

9) Mn2(SO3)3 ____manganese(III) sulfite______

10) Al(CN)3 ______aluminum cyanide______

Write the formulas for the following compounds:

11) chromium (VI) phosphate ___Cr(PO3)2______

12) vanadium (IV) carbonate _____V(CO3)2______

13) tin (II) nitrite ______Sn(NO2)2______

14) cobalt (III) peroxide ______Co2(O2)3______

15) titanium (II) acetate ______Ti(C2H3O2)2______

16) vanadium (V) sulfide ______V2S5______

17) chromium (III) hydroxide _____Cr(OH)3______

18) lithium iodide______LiI_______

19) lead (II) nitride ______Pb3N2______

20 silver bromide ______AgBr______

HOMEWORK #2

IONIC & MOLECULAR FORMULAS NAME:

PART I: Write the name or formula for the ionic compounds below.

NAME / FORMULA
1. lead (IV) acetate / Pb(C2H3O2)4
2. sodium phosphate / Na3PO4
3. magnesium nitrite / Mg(NO2)2
4. cesium sulfide / Cs2S
lithium sulfite / Li2SO3
magnesium nitride / Mg3N2

PART II: Write the correct name for each ionic compound below, including a roman numeral showing the oxidation number of the transition metal.

NAME / FORMULA
1. copper(II) arsenate / Cu3(AsO4)2
2. iron(II) chloride / FeCl2
3. manganese(IV) nitrate / Mn(NO3)4
4. chromium(III) phosphite / CrPO3
5. vanadium(III) cyanide / V(CN)3
6. lead(IV) dichromate / Pb(Cr2O7)2

PART III: Write the correct name or formula for each molecular compound below.

NAME / FORMULA
1. carbon tetrabromide / CBr4
2. disilicon heptoxide / Si2O7
3. pentacarbon decafluoride / C5F10
4. boron trihydride / BH3

PART IV: Identify each substance below as ionic (I) or molecular (M), and whether you would use charges (C) or prefixes (P). Then determine the name or formula, as needed.

NAME / I or M / C or P / FORMULA
1. magnesium fluoride / MgF2
2. tin (IV) permanganate / Sn(MnO4)4
3. tricarbon hexafluoride / C3F6
4. potassium periodate / KIO4
5. ammonium sulfide / (NH4)2S
6. lithium nitrite / LiNO2
7. diphosphorus pentoxide / P2O5
8. fluorine / F2
9. strontium hydrogen carbonate / Sr(HCO3)2
10. aluminum hypochlorite / Al(ClO)3
11. silicon dioxide / SiO2
12. potassium peroxide / K2O2
13. calcium nitride / Ca3N2
14. barium chromate / BaCrO4
15. silver iodate / AgIO3
16. nickel (III) carbonate / Ni2(CO3)3
17. calcium acetate / Ca(C2H3O2)2
18. manganese (IV) phosphide / Mn3P4
19. hexacarbon hexachloride / C6Cl6
20. rubidium iodide / RbI
21. sulfur tetrafluoride / SF4

Homework 3: Naming Acids

Name the following acids and bases:

1) H2S _____hydrosulfuric acid______

2) H2SO3 ___sulfurous acid______

3) H2SO4 ___sulfuric acid______

4) H3PO4 ___phosphoric acid______

5) H3AsO4 ___arsenic acid______

6) HCN _____hydrocyanic acid______

7) HClO4 ____perchloric acid______

8) HClO ____hypochlorous acid______

9) H3P_____hydrophosphoric acid______

Write the formulas of the following acids and bases:

10) hydrofluoric acid ______HF______

11) hydroselenic acid ______H2Se______

12) carbonic acid ______H2CO3______

13) chloric acid ______HClO3_______

14) hydrochloric acid ______HCl______

15) nitrous acid ______HNO2______

16) sulfuric acid ______H2SO4______

17) acetic acid ______HC2H3O2______

18) hydroiodic acid ______HI______

Mixed Naming Chemical Compounds

The following are a good mix of naming and formula writing problems to help you get some practice.

Name the following chemical compounds:

1) NaBr ______sodium bromide______

2) Ca(C2H3O2)2 __calcium acetate______

3) P2O5 ______diphosphorus pentoxide______

4) Ti(SO4)2 ______titanium(IV) sulfate______

5) H3PO4 ______phosphoric acid______

6) H3N ______hydronitric acid______

7) SO2 ______sulfur dioxide______

8) HNO2 ______nitrous acid______

9) Zn(MnO4)2 ______zinc permanganate______

10) V2(Cr2O7) 3 _____vanadium(III) dichromate______

Write the formulas for the following chemical compounds:

11) chromic acid______H2CrO4______

12) nickel (III) sulfide ______Ni2S3______

13) hypochlorous acid ______HClO ______

14) silver acetate ______AgC2H3O2______

15) diboron tetrabromide ______B2Br4______

16) oxalic acid _____H2C2O4______

17) potassium carbonate ______K2CO3______

18) ammonium oxide ______(NH4)2O______

19) tin (IV) selenide ______Sn(Se)2______

20) carbon tetrachloride ______CCl4______