Unit 6: Chemical Compounds
Name: _____________________________________
Per: 1 2 3 4 5 6 7 8
Unit 6 Homework Packet
Chemical Bonding (Ch.6 and 7)
Unit 6 Homework Grade: ___________/ 378
Overall Objective: to be able to understand how and why atoms bond together
and to recognize ionic and covalent compounds.
At the end of the unit, you should:
1. be able to determine the common charge of the ions of the elements in groups IA, IIA, IIIA, IVA,
VA, VIA, VIIA, VIIIA.
2. be able to differentiate between molecular (covalent) and ionic compounds.
3. be able to differentiate between covalent and ionic bonds.
4. know what a polyatomic ion is and how it bonds with other ions.
5. define nomenclature.
6. recognize the difference between acids, covalent compounds, and ionic compounds by name and
formula.
7. correctly name acids, covalent compounds, and ionic compounds given a formula.
8. Write and give the formula for acids, covalent compounds, and ionic compounds given a chemical
name.
9. know the different types of particles (atoms, molecule).
10. Explain how the octet rule applies to atoms of metallic and nonmetallic elements
11. Distinguish between melting and boiling points of molecular and ionic compounds.
12. Describe three properties of ionic compounds
1
Unit 6: Chemical Compounds
Counting atoms makes me hungry!
When atoms bond to form molecules, we use subscripts to tell how many atoms of each
element are in the compound. We also use coefficients to tell how many molecules there are.
For example, a sandwich has 2 slices of bread and one slice of meat. Using proper chemistry
notation, we would write this as:
Bread2Meat
This tells me that I have two breads, and only 1 meat. If I had three slices of meat, how would
I write that?
__________________
I can also use coefficients to tell me that I have more than one molecule. If I had two Big
Macs, we would write this as:
2Bread3Meat2
How many total breads do I have?__________________
How many total meats do I have? __________________
Finally, parenthesis set things aside, just like in math. For example, I have a salad that has 2
cucumbers for every one piece of tomato. There are two sets of tomatoes and cucumbers for
every 15 pieces of lettuce. We would write this as:
Lettuce15(Cucumber2Tomato)2
How many total lettuces do I have? __________________
How many total cucumbers do I have? _________________
How many total tomatoes do I have? _____________________
2
Unit 6: Chemical Compounds
Now you get to practice these with real compounds!
Fe
O
H
N
C
Na
O
H
N
C
S
O
Al
N
H
Fe(OH)3
3 Fe(OH)3
2 Fe(NO3)3
H2CO3
4 Fe(HCO3)3
2 Fe(NO3)3
3 FeCO3
CO2
2 CO2
NaHCO3
4 NaOH
NH4NO3
13 NH4NO3
SO2
A12(SO4)3
A12O3
2 NH4NO3
4 NH4NO2
_______/ 45
3
Unit 6: Chemical Compounds
Atoms to Ions
Determine the ion formed when you gain or lose an electron from the following atoms.
Keep in mind, metals like to lose electrons and nonmetals like to gain electrons.
Atom
Gains or Loses
electrons
How many
electrons?
Li
Loses
1
Ion
Li +1
Mg
P
S
Br
Al
N
_______/ 18
4
Unit 6: Chemical Compounds
Types of Bonds (To Be Completed In Class)
Classify the following compounds as ionic (metal + nonmetals; transferring electrons), covalent
(nonmetal + nonmetal; sharing electrons) or both (compound containing polyatomic).
Compound
Calculations
Bond Type______
1. CaBr2
________________________________________________
2. AlCl3
________________________________________________
3. Zn3N2
________________________________________________
4. KCl
________________________________________________
5. Na2S
________________________________________________
6. AlN
________________________________________________
7. CsI
________________________________________________
8. Ca3P2
________________________________________________
9. BaO
________________________________________________
10. BeF2
________________________________________________
11. FeCl2
________________________________________________
12. FeCl3
________________________________________________
13. Ag2O
________________________________________________
14. CuS
________________________________________________
15. CoP
________________________________________________
_______/ 30
5
Unit 6: Chemical Compounds
Bonding Basics- Ionic Compounds (To Be Completed In Class)
Element
# of protons
# of electrons
# of valence electrons
Potassium
Flourine
Calcium
Chlorine
Follow your teacher’s directions to complete each ionic bond.
(1) Potassium + Fluorine
(2) Calcium + Chlorine
_______/ 10
(completion)
6
Unit 6: Chemical Compounds
Formula Writing for Binary Ionic Compounds
Write the formula for the following binary compounds.
1. sodium bromide
________________________________________________
2. manganese (IV) oxide
________________________________________________
3. iron (II) sulfide
________________________________________________
4. barium nitride
________________________________________________
5. silver chloride
________________________________________________
6. copper (II) oxide
________________________________________________
7. nickel (II) bromide
________________________________________________
8. magnesium phosphide
________________________________________________
9. aluminum iodide
________________________________________________
10. calcium oxide
________________________________________________
11. strontium arsenide
________________________________________________
12. lead (IV) chloride
________________________________________________
13. silver selenide
________________________________________________
14. copper (I) phosphide
________________________________________________
15. magnesium chloride
________________________________________________
16. thallium (VI) oxide
________________________________________________
17. barium iodide
________________________________________________
18. iron (I) bromide
________________________________________________
19. Lithium bromide
________________________________________________
20. palladium (III) sulfide
________________________________________________
WHAT RULES DO I NEED TO REMEMBER TO ANSWER THESE
QUESTIONS?
_______/ 40
7
Unit 6: Chemical Compounds
Nomenclature Writing for Binary Ionic Compounds
Write the name for the following binary ionic compounds.
1. CaBr2
________________________________________________
2. AlCl3
________________________________________________
3. Zn3N2
________________________________________________
4. KCl
________________________________________________
5. Na2S
________________________________________________
6. AlN
________________________________________________
7. CsI
________________________________________________
8. Ca3P2
________________________________________________
9. BaO
________________________________________________
10. BeF2
________________________________________________
11. FeCl2
________________________________________________
12. FeCl3
________________________________________________
13. Ag2O
________________________________________________
14. CuS
________________________________________________
15. CoP
________________________________________________
16. MnBr3
________________________________________________
17. NiN
________________________________________________
18. ZnF2
________________________________________________
19. VO2
________________________________________________
WHAT RULES DO I NEED TO REMEMBER TO ANSWER THESE QUESTIONS?
_______/ 38
8
Unit 6: Chemical Compounds
Formula Writing for Polyatomic Ionic Compounds
Write the formulas for the following polyatomic ionic compounds.
1. sodium hydroxide
________________________________________________
2. iron (III) sulfate
________________________________________________
3. potassium permanganate ________________________________________________
4. copper (II) hydroxide
________________________________________________
5. ammonium sulfide
________________________________________________
6. ammonium sulfate
________________________________________________
7. mercury (I) sulfite
________________________________________________
8. magnesium phosphate
________________________________________________
9. cobalt (IV) bicarbonate
________________________________________________
10. zinc bicarbonate
________________________________________________
11. aluminum phosphate
________________________________________________
12. lithium carbonate
________________________________________________
13. strontium acetate
________________________________________________
14. copper (II) nitrate
________________________________________________
15. sodium phosphite
________________________________________________
16. rubidium carbonate
________________________________________________
17. tin (II) thiocyanate
________________________________________________
18. ammonium arsenate
________________________________________________
19. iron (II) hydroxide
________________________________________________
20. manganese (VI) carbonate ______________________________________________
WHAT RULES DO I NEED TO REMEMBER TO ANSWER THESE
QUESTIONS?
_______/ 40
9
Unit 6: Chemical Compounds
Nomenclature Writing for Polyatomic Ionic Compounds
Write the names for the following polyatomic ionic compounds.
1. Cs2(Cr2O7)
________________________________________________
2. K2(SO4)
________________________________________________
3. (NH4)2SO4
________________________________________________
4. Co(ClO3)3
________________________________________________
5. NiPO4
________________________________________________
6. Fe(NO3)3
________________________________________________
7. MgCrO4
________________________________________________
8. CaCO3
________________________________________________
9. KMnO4
________________________________________________
10. NaC2H3O2
________________________________________________
11. PbCrO4
________________________________________________
12. CoPO4
________________________________________________
13. NiCr2O7
________________________________________________
14. (NH4)2SO3
________________________________________________
15. KClO3
________________________________________________
16. Os3(PO3)2
________________________________________________
17. ZrHCO3
________________________________________________
WHAT RULES DO I NEED TO REMEMBER TO ANSWER THESE QUESTIONS?
_______/ 34
10
Unit 6: Chemical Compounds
Chemical Formulas Pairs Check (To Be Completed In Class)
Directions: Write the chemical formula for each word formula listed. Check your partner as
they are completing their formula. Praise or coach each other until both partners understand
all sixteen formulas.
1. Sodium Chloride
2. Magnesium Oxide
______________________________
_______________________________
3. Aluminum Sulfide
4. Potassium Oxide
______________________________
_______________________________
5. Calcium Chloride
6. Lithium Nitride
______________________________
_______________________________
7. Lead (II) Oxide
8. Iron (III) Flouride
______________________________
_______________________________
9. Copper (I) Flouride
10. Zinc Oxide
______________________________
_______________________________
11. Rubidium Bromide
12. Potassium Chloride
______________________________
_______________________________
13. Titanium (III) Sulfide
14. Calcium Iodide
______________________________
_______________________________
11
Unit 6: Chemical Compounds
Bond with a Classmate (To be Completed In Class)
When you find another ion with which you can bond, write in each symbol and charge. Then write the
new compound formed by combining the two. Give the compound’s name. Remember-positive ions
can only bond with negative ions and vice versa!!!
Cation
Mg2+
Anion
Cl-
Compound
MgCl2
Name
Magnesium Chloride
_______/ 25
(Completion)
12
Unit 6: Chemical Compounds
Compound Naming Race (To be Completed In Class)
Be the first team in the room to correctly get all the formulas on this sheet right. When you have
finished the first ten problems, bring them up to the teacher to be checked. Once these have been
checked, move to the second ten. Once all forty problems have been solved, you’re the winner!
1)
copper (II) acetate __________________
2)
sodium hydroxide __________________
3)
lithium oxide __________________
4)
cobalt (III) carbonate __________________
5)
aluminum sulfide __________________
6)
ammonium cyanide __________________
7)
iron (III) phosphide __________________
8)
vanadium (V) phosphate __________________
9)
sodium permanganate __________________
10)
manganese (III) fluoride __________________
11)
beryllium nitrate __________________
12)
nickel (III) sulfite __________________
13)
potassium oxide __________________
14)
silver bromide __________________
15)
zinc phosphate __________________
16)
copper (II) bicarbonate __________________
17)
nickel (II) selenide __________________
18)
manganese (IV) carbonate __________________
19)
lead (IV) nitride __________________
20)
tin (II) hydroxide __________________
13
Unit 6: Chemical Compounds
21)
lithium arsenide __________________
22)
chromium (VI) sulfate __________________
23)
calcium bromide __________________
24)
ammonium sulfate __________________
25)
copper (II) oxide __________________
26)
platinum (IV) phosphate __________________
27)
aluminum carbonate __________________
28)
silver nitrate __________________
29)
magnesium acetate __________________
30)
nickel (III) cyanide __________________
31)
vanadium (IV) phosphate __________________
32)
silver sulfate __________________
33)
cobalt (III) sulfide __________________
34)
iron (II) sulfite __________________
35)
copper (II) nitrite __________________
36)
nickel (II) hydroxide __________________
37)
zinc nitride __________________
38)
manganese (VII) nitrate __________________
39)
gallium sulfate __________________
40)
sodium nitrate __________________
_______/ 40
(Completion)
14
Unit 6: Chemical Compounds
Bonding Basics- Covalent (To Be Completed In Class)
Element
# of protons
# of electrons
# of valence
electrons
# of electrons
needed to fill
outer shell
Carbon
Chlorine
Oxygen
Nitrogen
Follow your teacher’s directions to complete each covalent bond.
(1) Hydrogen + Oxygen
(2) Carbon + Oxygen
_______/ 18
(Completion)
15
Unit 6: Chemical Compounds
Nomenclature Writing for Covalently Bonded Compounds (Molecules)
Write the names for the following polyatomic ionic compounds.
1. CO
__________________________
2. CO2__________________________
3. N2O
__________________________
4. N2O4
__________________________
5. NO2
__________________________
6. CF4
__________________________
7. BCl3
__________________________
8. PCl5
__________________________
9. SF6
__________________________
10. S2O3
__________________________
Write out the formulas for the following.
11. phosphorus trichloride
__________________________
12. dinitrogen pentoxide
__________________________
13. nitrogen triiodide
__________________________
14. sulfur tetrabromide
__________________________
15. selenium hexachloride
__________________________
16. nitrogen monoxide
__________________________
17. sulfur dioxide
__________________________
18. boron trifluoride
__________________________
19. carbon tetrachloride
__________________________
20. arsenic pentabromide
__________________________
_______/ 40
16
Unit 6: Chemical Compounds
Ultimate Nomenclature (Review for Test)
Given the name, identify each of the following as Ionic (I), covalent (C), or acid (A). Then, write the
formula.
_____ 1. sulfuric acid
__________________________________________
_____ 2. sodium hydroxide
__________________________________________
_____ 3. sodium bromide
__________________________________________
_____ 4. barium hydroxide
__________________________________________
_____ 5. manganese (IV) oxide
__________________________________________
_____ 6. sulfur dioxide
__________________________________________
_____ 7. iron (II) sulfide
__________________________________________
_____ 8. hydrochloric acid
__________________________________________
_____ 9. potassium permanganate __________________________________________
_____ 10. sulfur trioxide
__________________________________________
_____ 11. copper (II) hydroxide
__________________________________________
_____ 12. ammonium sulfide
__________________________________________
_____ 13. nickel (II) bromide
__________________________________________
_____ 14. iron (II) oxide
__________________________________________
_____ 15. acetic acid
__________________________________________
_____ 16. ammonium chlorate
__________________________________________
_____ 17. diarsenic pentoxide
__________________________________________
_____ 18. iron (III) oxide
__________________________________________
_____ 19. magnesium phosphate
__________________________________________
_____ 20. nickel (III) bicarbonate __________________________________________
_____ 21. zinc carbonate
__________________________________________
17
_____ 23. aluminum phosphate
Unit 6: Chemical Compounds
__________________________________________
_____ 24. thallium (I) oxide
__________________________________________
_____ 25. nitric acid
__________________________________________
_____ 26. lithium sulfite
__________________________________________
_____ 27. carbon monoxide
__________________________________________
_____ 28. strontium acetate
__________________________________________
_____ 29. copper (II) nitrate
__________________________________________
_____ 30. phosphorus trichloride
__________________________________________
_____ 31. nitrogen dioxide
__________________________________________
_____ 32. sodium phosphate
__________________________________________
_____ 33. phosphoric acid
__________________________________________
_____ 34. lead (IV) chloride
__________________________________________
_____ 35. tin (II) hydroxide
__________________________________________
_____ 36. ammonium hydroxide
__________________________________________
_____ 37. carbon dioxide
__________________________________________
_____ 38. dinitrogen pentoxide
__________________________________________
_____ 39. silver oxide
__________________________________________
_____ 40. aluminum nitride
__________________________________________
_____ 41. xenon tetrafluoride
__________________________________________
_____ 42. zinc oxide
__________________________________________
_____ 43. beryllium sulfide
__________________________________________
_____ 44. silicon tetraoxide
__________________________________________
Given the formula, identify each of the following as Ionic (I), covalent (C), or acid (A). Then, write the
name.
18
Unit 6: Chemical Compounds
_____ 1. CaCO3
________________________________________________
_____ 2. FeO
________________________________________________
_____ 3. H2CO3
________________________________________________
_____ 4. AgCl
________________________________________________
_____ 5. N2O
________________________________________________
_____ 6. Ba(OH)2
________________________________________________
_____ 7. Na2S
________________________________________________
_____ 8. KrCl2
________________________________________________
_____ 9. H3PO4
________________________________________________
_____ 10. (NH4)2SO4
________________________________________________
_____ 11. HC2H3O2
________________________________________________
_____ 12. Zn(NO2)2
________________________________________________
_____ 13. CuSO4
________________________________________________
_____ 14. XeF4
________________________________________________
_____ 15. NaOH
________________________________________________
_____ 16. PbCl2
________________________________________________
_____ 17. SO3
________________________________________________
_____ 18. NH4NO2
________________________________________________
_____ 19. Ca(HCO3)2
________________________________________________
_____ 20. Ba(ClO3)2
________________________________________________
_____ 21. RhCN
________________________________________________
_____ 22. SF3
________________________________________________
_____ 23. K2SO3
________________________________________________
19
_____ 24. Hg(OH)2
Unit 6: Chemical Compounds
________________________________________________
_____ 25. Cu2S
________________________________________________
_____ 26. KHCO3
________________________________________________
_____ 27. AlBr3
________________________________________________
_____ 28. CCl4
________________________________________________
_____ 29. NaClO4
________________________________________________
_____ 30. Be3N2
________________________________________________
_____ 31. Cs2Cr2O7
________________________________________________
_____ 32. Fe2(CrO4)3
________________________________________________
_____ 33. AlCl3
________________________________________________
_____ 34. HCl
________________________________________________
_____ 35. NO2
________________________________________________
_____ 36. N2O
________________________________________________
_____ 37. KNO3
________________________________________________
_____ 38. Mg(CN)2
________________________________________________
_____ 39. Ca3(PO4)2
________________________________________________
_____ 40. PbO2
________________________________________________
_____ 41. P4O10
________________________________________________
_____ 42. PO3
________________________________________________
_____ 43. KF
________________________________________________
_____ 44. FeCl2
________________________________________________
_____ 45. ICl
________________________________________________
_______/ 45
(extra credit)
20