Worksheet #1: Writing and Balancing Formula EquationsStep 1: Write each formula and balance each formula using SUBSCRIPTS.Step 2: Balance the overall equation using coefficients.

1. sulfur + oxygen ~ sulfur dioxide

2. zinc + sulfuric acid ~ zinc sulfate + hydrogen

3. hydrogen + nitrogen ~ ammonia

4. hydrogen + chlorine ~ hydrogen chloride

5. carbon + water carbon monoxide + hydrogen

6. calcium oxide + water ~ calcium hydroxide

7. phosphorus + oxygen ~ diphosphorus pentoxide

8. hydrochloric acid + sodium hydroxide ~ sodium chloride + water

9. barium chloride + sulfuric acid ~ barium sulfate + hydrochloric acid

10. aluminum sulfate + calcium hydroxide ~ aluminum hydroxide + calcium sulfate

11. ethane (C2H6) + oxygen ~ carbon dioxide + water

12. aluminum oxide aluminum + oxygen..0'

Worksheet #2: Synthesis ReactionsIn synthesis reactions, two or more reactants come together to form one compound.

A + B -7 ABComplete the following word equations, and write and balance the formula equation.1. calcium + oxygen -7

2. copper + sulfur -7 copper(lI) sulfide

3. calcium oxide + water -7 calcium hydroxide

4. hydrogen + nitrogen -7

5. hydrogen + chlorine -7

6. silver + sulfur -7

7. chromium + oxygen -7

8. aluminum + bromine -7

9. sodium + iodine -7

10. hydrogen + oxygen -7

11. aluminum + oxygen -7

.~. ,

Worksheet #3: Decomposition ReactionsIn decomposition reactions, one compound will break down into two or more parts.1, barium carbonate ~

2, magnesium carbonate ~

3. potassium carbonate ~

4. zinc hydroxide ~

5. Iron(II) hydroxide ~

6. nickel(II) chlorate ~

7. sodium chlorate ~

8. potassium chlorate ~

g, sulfuric acid ~

10. carbonic acid ~

11. aluminum oxide ~

12. silver oxide

A. •• f

Worksheet #4: Single-Replacement ReactionsStep 1 - Write the formulas of the reactants on the left of the yield signStep 2 - Look at the Activity Series on page 266 to determine if the replacement can happenStep 3 - If the replacement can occur, complete the reaction and balance it. If the reaction

cannot happen, write N.R. (no rxn) on the product side.1. lead + zinc acetate -7

2. iron + aluminum oxide

3. silver nitrate + nickel

4. sodium bromide + iodine

5. aluminum bromide + chlorine

6. sodium iodide + bromine

7. calcium + hydrochloric acid -7

8. magnesium + nitric acid -7

9. silver + sulfuric acid

10. potassium + water -7

11. sodium + water -7

.... ,

Worksheet #5: Double-Replacement ReactionsIn these reactions, all you do is look at the names of the reactants, and "switch partners". Justbe sure that the new pairs come out with the positive ion named first, and paired with anegative ion.1. aluminum iodide + mercury(lI) chloride ~

2. silver nitrate + potassium phosphate

3. copper(lI) bromide + aluminum chloride ~

4. calcium acetate + sodium carbonate ~

5. ammonium chloride + mercury(l) acetate

6. calcium nitrate + hydrochloric acid ~

7. iron(ll) sulfide + hydrochloric acid ~

8. copper(lI) hydroxide + acetic acid ~

9. calcium hydroxide + phosphoric acid ~

10. calcium bromide + potassium hydroxide ~

Examine the products of the reactions on this page, and determine in each whether a gas,water, or a precipitate is formed. Use the solubility table in Appendix A of your textbook todetermine the solubilities of the reaction products. If there is no gas, water, or precipitateproduced, put an "X" through the yield sign, because no reaction occurs.

& •• f

Worksheet #6: Combustion ReactionsWe will focus on the combustion of hydrocarbons. Hydrocarbons react with oxygen to formcarbon dioxide and water.

1. methane (CH4) + oxygen -7

2. ethane (C2H6) + oxygen -7

3. propane (C3HS) + oxygen -7

4. butane (C4HlO) + oxygen -7

5. pentane (C5H12) + oxygen -7

6. hexane (C6H14) + oxygen -7

9. benzene (C6H6) + oxygen -7

•. ,r

Worksheet #1: Writing and Balancing Formula Equations1. sulfur + oxygen -7 sulfur dioxide

2. zinc + sulfuric acid -7 zinc sulfate + hydrogen

Zn +

3. hydrogen + nitrogen -7 ammonia

+

4. hydrogen + chlorine -7 hydrogen chloride

2HCI

5. carbon + water -7 carbon monoxide + hydrogen

C + co +

6. calcium oxide + water -7 calcium hydroxide

CaO -7 Ca(OH).2

7. phosphorus + oxygen -7 diphosphorus pentoxide

8. hydrochloric acid + sodium hydroxide -7 sodium chloride + water

HCI + NaOH NaCI H20

9. barium chloride + sulfuric acid -7 barium sulfate + hydrochloric acid

BaS04 + 2HCI

10. aluminum sulfate + calcium hydroxide -7 aluminum hydroxide + calcium sulfate

AI2(S04)J + 3Ca(OH)2 -7 2AI(OH)3 + 3CaS04

11. ethane (C2H6) + oxygen -7 carbon dioxide + water

2C2H6 + 702 -7 4C02 + 6H20

12. aluminum oxide aluminum + oxygen

A..O'

( }-i ilr-d,-e.,r 5Y{l-th-LSis CQ_OMloln~~2)Y1 ) a~ ~~Vt Q ot>-m-Q_ p(b~(A,~+pre,cl ~C~Dy\ \f\Ic>rl!5~ee.-f I 5490l-em-urri-s

Worksheet #2: Synthesis Reactions

1. calcium.... oxygen ~ calcium oxide

2Ca .... 02 ~ 2CaO

2. copper .... sulfur ~ copper(lI) sulfide

8Cu .... Sa ~ 8CuS

3. calcium oxide .... water ~ calcium hydroxide

4. hydrogen .... nitrogen ~ ammonia

5. hydrogen .... chlorine ~ hydrogen chloride

6. silver .... sulfur ~ silver sulfide

16Ag ....

7. chromium .... oxygen ~ chromium(lIl) oxide

8. aluminum .... bromine ~ aluminum bromide

9. sodium .... iodine ~ sodium iodide

2Na .... 12 ~ 2Nal

10. hydrogen .... oxygen ~ water

11. aluminum .... oxygen ~ aluminum oxide

,. ... f

Worksheet #3: Decomposition ReactionsIn decomposition reactions, one compound will break down into two or more parts.1. barium carbonate ~ barium oxide + carbon dioxide

BaC03 ~ BaO + CO2

2. magnesium carbonate ~ magnesium oxide + carbon dioxide

MgC03 ~ MgO + CO2

3. potassium carbonate ~ potassium oxide + carbon dioxide

K2C03 ~ K20 + CO2

4. zinc hydroxide ~ zinc oxide + water

Zn(OH)2 ~ ZnO + H2O

Fe(OH)2

iron(ll) oxide + water

~ FeO + H2O

nickel(ll) chloride + oxygen

~ NiCI2 + 302

sodium chloride + oxygen

~ 2NaCI + 302

5. iron(lI) hydroxide

6. nickel(lI) chlorate

7. sodium chlorate

2NaCI03

8. potassium chlorate ~ potassium chloride + oxygen

2KCI03 ~ 2KCI + 302

9. sulfuric acid ~ water + sulfur trioxide

H2SO4 -7 H2O + S03

10. carbonic acid ~ water + carbon dioxide

H2C03 ~ H2O + CO2

11 . aluminum oxide ~ aluminum + oxygen

2AI203 ~ 4AI + 302

(,{"' 12. silver oxide ~ silver + oxygen.~

2Ag2O ~ 4Ag + O2 .... f

·9.

11.,'"

Worksheet #4: Single-Replacement ReactionsStep l' - Write the formulas of the reactants on the left of the yield signStep 2 - Look at the Activity Series on page 266 to determine if the replacement can happenStep 3 - If the replacement can occur, complete the reaction and balance it. If the reaction

cannot happen, write N.R. (no rxn) on the product side.1. lead + zinc acetate -7

~ N.R.

2. iron + aluminum oxide

Fe N.R.

3. silver nitrate + nickel + silvernickel(ll) nitrate

2AgN03 + Ni + 2Ag

4. sodium bromide iodine -7+

NaBr + N.R.

5. aluminum bromide + chlorine aluminum chloride + bromine

2AIBr3 + + 38r2

6. sodium iodide + bromine -7

2Nal + Br2 -7

calcium + hydrochloric acid -7

Ca + 2HCI -7

magnesium + nitric acid -7

Mg + 2HN03 -7 +

sodium bromide + iodine

2NaBr + 12

7. calcium chloride + hydrogen

CaCI2 +

magnesium nitrate8. + hydrogen

silver + sulfuric acid

10.

Ag + H2SO4 -7 N.R.

potassium + water -7 potassium hydroxide + hydrogen

2K + 2H20 -7 2KOH + H2

sodium + water -7 sodium hydroxide + hydrogen

2Na + 2H2O -7 2NaOH + H2... ,

Work~heet #5: Double-Replacement ReactionsIn these reactions, all you do is look at the names of the reactants, and "switch partners". Justbe sure that the new pairs come out with the positive ion named first, and paired with anegative ion.1. aluminum iodide + mercury(lI) chloride -7 aluminum chloride + mercury(ll) iodide

3HgCI2 -7 2AICI3 + 3Hgl2(ppt)

2. silver nitrate + potassium phosphate -7 silver phosphate + potassium nitrate

3. copper(lI) bromide + aluminum chloride -7 copper(lI) chloride + aluminum bromide

3CuBr2 + 2AICI3 X 3CuCI2 + 2AlBr3---7

4. calcium acetate + sodium carbonate -7 calcium carbonate + sodium acetate

5. ammonium chloride + mercury(l) acetate -7 ammonium acetate + mercury(l) chloride

6. calcium nitrate + hydrochloric acid -7 calcium chloride + nitric acid

Ca(N03)2 + 2HCI X CaCb + 2HN03~

7. iron(lI) sulfide + hydrochloric acid ~ iron(lI) chloride + hydrogen sulfide (9)

8. copper(lI) hydroxide + acetic acid -7 copper(lI) acetate + water

9. calcium hydroxide + phosphoric acid -7 calcium phosphate + water

10. calcium bromide + potassium hydroxide -7 calcium hydroxide + potassium bromide

Worksheet #6: Combustion ReactionsWe will focus on the combustion of hydrocarbons. Hydrocarbons react with oxygen to formcarbon dioxide and water.

1. methane (CH4) + oxygen ~ carbon dioxide + water

CH4 + 202 -7 CO2 + 2HzO

2. ethane (C2H6) + oxygen -7 carbon dioxide + water

2C2Hs + 702 -7 4C02 + 6H2O

3. propane (C3Ha) + oxygen -7 carbon dioxide + water

C3Ha + 50z ~ 3COz + 4H2O

4. butane (C4HlO) + oxygen ~ carbon dioxide + water

2C4H1o + 1302 -7 BC02 + 10H2O

5. pentane (CsH12) + oxygen -7 carbon dioxide + water

CSH12 + 802 -7 5COz + 6HzO

6. hexane (C6H14) + oxygen -7 carbon dioxide + water

2CsH14 + 1902 ~ 12COz + 14H2O

7. ethene (CZH4) + oxygen -7 carbon dioxide + water

CZH4 + 30z -7 2C02 + 2H2O

8. ethyne (CZH2) + oxygen -7 carbon dioxide + water

2C2H2 + 502 -7 4C02 + 2H2O

. 9. benzene (C6HS) + oxygen -7 carbon dioxide + water

2CsH6 + 1502 -7 12C02 + 6H2O

II. •• ~