Review of Naming compounds and Balancing Equations

Mrs. Kirby’s and Ms. Perez’s Chemistry Class

Your Turn page 1a

• Part 1 Creating Naming Ionic Compounds

Group #Charge1

2

3

4

5

6

7

8

Step for Writing Formulas

Calcium Chlorate • 1. Which is the cation? What is the charge of the cation?• 2. Which is the anion? What is the charge of the anion?

– Ca+2 ClO3-1 = CaClO3

• 3. Is this a correct ionic compound? Yes or no? If no then what can you do to fix this?

• 4. No, Cross the charges. – Ca+2 ClO3-1 = Ca(ClO3)2

• 5. How many of each element are there? – Ca=1– Cl=2– O= 6

Your Turn page 1b

1. Li2S 2. MgBr2 3. N2S

4. Be(OH)2 5. Strontium Dichromate

6. Potassium Oxide

7. Carbon Tetrabromide

8. Potassium Oxide

9. Copper I Chloride

Does the compound contain a metal?

Yes No

Is the Metal a Transistion Metal?

YesUse roman numerals to indicate the charge of the

metal

No Do not use roman numerals, Do not use prefixes

The Compound is covalent therefore use prefixes

Mono=1 Di=2 Tri=3 Tetra=4 Penta=5

Your Turn page 2

NO2 NaBr SiO2

P2Br4 FeSO4 SF6

Mercury I Sulfite

Lead II Carbonate

Magnesium Nitrite

Ammonium Iodide

Phosphoric acid Tin II Oxide

Part 2 Predicting Equations• Step 1

– Find your cations, if you have a metal by itself it a cation. If you have a non-metal by itself it is a anion.

– Ex. Ca(ClO3)2 + NaBr – Cations are Ca+2 Na+1

• Step 2 – Figure out what type of reaction you can create with

what you are given. – **If I give you ______ what can you make: Each letter

represents a single element or 1 polyatomic ion. • A+B • AB+C• AB+CD• AB

– Ex. Ca(ClO3)2 + NaBr this is a double replacement reaction. AB+CD

• Step 3 – Separate the given into its charges. – Ex. Ca(ClO3)2 + NaBr

– Ca+2 ClO3-1 + Na+1 Br -1

• Step 4 – Using the Type of reaction you have chosen rearrange the ions. – Ex. Ca+2 ClO3-1 + Na+1 Br -1 Ca+2 Br -1 + Na+1 ClO3-1

• Step 5 – Cross the charges to create a correct ionic compound. – Ex. Ca+2 ClO3-1 + Na+1 Br -1 Ca+2 Br -1 + Na+1 ClO3-1

– Ex. Ca(ClO3)2 + NaBr CaBr2 + NaClO3

• Step 6 – Balance the equations, you may only balance by adding

coefficients NOT subscripts. – Ex. Ca(ClO3)2 + 2NaBr CaBr2 + 2NaClO3

Your Turn Page 4aDetermine Reaction Type,

Complete and Balance• ________________ CaCl2 + K2CO3 →• ________________ K + Cl2 →• ________________ BaCl2+ K3PO4 →• ________________ H2SO4 + KOH →• ________________ Al2(CO3)3 + heat →• ________________ Al + O2 →• _______________ Pb(NO3)2 + KOH →• ________________ H2SO4 + BaCl2 →• ________________ Ca + AgCl →

Your Turn Page 4bDetermine Reaction Type,

Complete and Balance• ________________H3PO4 + FeBr3 →• ________________Li + N2 →• ________________HCl + Mg(OH)2 →• ________________Mg + I2 →• ________________CuCl2 + H2S →• ________________NaOH + HClO4 →• ________________ZnCO3 + heat →• ________________HCl +Zn →

Answers

• The following slides are the answers to the Your Turn Slides

• Part 1 Creating Naming Ionic Compounds

Group #Charge1 1+

2 2+

3 3+

4 4+ or 4 -

5 3-

6 2-

7 1-

8 No charge

Your Turn

• Li2S

Lithium Sulfide

2. MgBr2

Magnesium Bromide

3. N2S

Dinitrogen monosulfide

4. Be(OH)2

Beryllium Hydroxide

5. Strontium Dichromate

Sr(Cr2O7)

6. Potassium Oxide

K2O

7. Carbon Tetrabromide

CBr4

8. Potassium Oxide

K2O

9. Copper I Chloride

CuCl

Your Turn NO2 Nitrogen dioxide

NaBr Sodium Bromide

SiO2 Silicon dioxide

P2Br4 Diphosphorus Tetrabromide

FeSO4

Iron II Sulfate

SF6

Sulfur Hexaflouride

Mercury I Sulfite

Hg2SO3

Lead II Carbonate

PbCO3

Magnesium Nitrite

Mg(NO2)2

Ammonium Iodide NH4I

Phosphoric acid

H3PO4

Tin II Oxide

SnO

Types of Reactions

• C combination

• D decomposition

• SR single-replacement• DR double-replacement

• C-O2 combustion

• C/C Combination or combustion

Your Turn Page 4aDetermine Reaction Type,

Complete and Balance• DR CaCl2 + K2CO3 → CaCO3 + 2KCl

• C 2K + Cl2 → 2KCl

• DR 3BaCl2 + 2K3PO4 → Ba3(PO4)2 (s)+ 6KCl

• DR H2SO4 + 2KOH → 2H2O (l) + K2SO4

• D Al2(CO3)3 + heat → 3Al + 3CO3

• C/C 4Al + 3O2 → 2Al2O3

• DR Pb(NO3)2 + 2KOH → Pb(OH)2 + 2KNO3

• DR H2SO4 + BaCl2 → 2HCl + BaSO4 (s)

• SR Ca + 2AgCl → CaCl2 + 2Ag

Your Turn Page 4bDetermine Reaction Type,

Complete and Balance• DR H3PO4 + FeBr3 → FePO4(s) + 3HBr

• C 6Li + N2 → 2Li3N

• DR 2HCl + Mg(OH)2 → 2H2O (l) + MgCl2• C Mg + I2 → MgI2

• DR CuCl2 + H2S → 2HCl + CuS

• DR NaOH + HClO4 → NaClO4 + H2O (l)

• D ZnCO3 + heat → Zn + CO3

• SR 2HCl +Zn → ZnCl2 + H2