Download Reaction Writing Sheet #1 Key

Reaction Writing Sheet #1 Key
Write and balance each of the following reactions and indicate the reaction type(s) present:
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zinc + sulfur → zinc sulfide
8 Zn(s) + S8 (s)
8 ZnS (s)
synthesis
potassium chloride + silver nitrate → potassium nitrate + silver chloride
KCl (aq) + AgNO3 (aq)
AgCl (s) + KNO3 (aq)
precipitation
calcium oxide + water → calcium hydroxide
CaO (s) + H2O (l)
Ca(OH)2 (s)
synthesis
sodium hydroxide + hydrochloric acid → sodium chloride + water
NaOH (aq) + HCl (aq)
NaCl (aq) + H2O (l)
acid-base -- neutralization
magnesium bromide + chlorine → magnesium chloride + bromine
MgBr2 (aq) + Cl2 (g)
MgCl2 (aq) + Br2 (l)
redox – more active halogen
ammonium nitrite → nitrogen + water
NH4NO2 (s)
N2 (g) + 2 H2O (l)
analysis
aluminum + iron(III) oxide → aluminum oxide + iron
2 Al (s) + Fe2O3 (s)
Al2O3 (s) + 2 Fe (s)
redox – more active metal
replacement
silver nitrate + nickel → nickel(II) nitrate + silver
2 AgNO3 (aq) + Ni (s)
Ni(NO3)2 (aq) + 2 Ag(s)
redox – more active metal
sodium chloride + sulfuric acid → sodium sulfate + hydrogen chloride
2 NaCl (aq) + H2SO4 (aq)
Na2SO4 (aq) + 2 HCl (aq)
No Reaction
hydrogen + nitrogen → ammonia
3 H2 (g) + N2 (g)
2 NH3 (g)
synthesis
Complete the word equation and write the balanced formula equations:
Composition:
sodium + iodine → sodium iodide
2 Na (s) + I2 (s)
2 NaI (s)
12.
calcium + oxygen → calcium oxide
2 Ca (s) + O2 (g)
2 CaO (s)
13.
hydrogen + chlorine → hydrogen chloride
H2 (g) + Cl2 (g)
2 HCl (g)
Decomposition:
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16.
nickel(II) chlorate → nickel (II) chloride + oxygen
Ni(ClO3)2 (s)
2 NiCl2 (s) + 3 O2 (g)
barium carbonate → barium oxide + carbon dioxide
BaCO3 (s)
BaO (s) + CO2 (g)
zinc hydroxide → zinc oxide + water
Zn(OH)2 (S)
ZnO (s) + H2O (l)
Precipitation/Acid-Base:
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18.
19.
silver nitrate + zinc chloride → silver chloride + zinc nitrate
2 AgNO3 (aq) ZnCl2 (aq)
2 AgCl (s) + Zn(NO3)2 (aq)
copper(II) hydroxide + acetic acid → copper (II) acetate + water
Cu(OH)2 (s) + 2 HCH3COO (aq)
Cu(CH3COO)2 (aq) + 2 H2O (l)
iron(II) sulfate + ammonium sulfide → iron (II) sulfide + ammonium sulfate
FeSO4 (aq) + (NH4)2S (aq)
FeS (s) + (NH4)2SO4 (aq)
Oxidation-Reduction
20.
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aluminum + sulfuric acid → aluminum sulfate + hydrogen
2 Al (s) + 3 H2SO4 (aq)
Al2(SO4)3 (aq) + 3 H2 (g)
potassium iodide + chlorine → potassium chloride + iodine
2 KI aq) + Cl2 (g)
2 KCl (aq) + I2 (s)
iron + copper(II) nitrate → iron(II) nitrate + copper
Fe (s) + Cu(NO3)2 (aq)
Fe(NO3)2 (aq) + Cu (s)
Combustion:
methane + oxygen → carbon dioxide + water
CH4 (g) + 2 O2 (g)
CO2 (g) + 2 H2O (g)
propane + oxygen → carbon dioxide + water
C3H8 (g) + 5 O2 (g)
3 CO2 (g) + 4 H2O (g)
ethanol + oxygen → carbon dioxide + water
C2H5OH (l) + 3 O2 (g)
2 CO2 (g) + 3 H2O (g)
Write the complete balanced equation and reaction type(s) for each of the following reactions:
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barium chloride + sodium sulfate →
BaCl2 (aq) + Na2SO4 (aq)
BaSO4 (s) + 2 NaCl (aq)
calcium + hydrochloric acid →
Ca (s) + 2 HCl (aq)
CaCl2 (aq) + H2 (g)
iron(II) sulfide + hydrochloric acid →
FeS (s) + 2 HCl (aq)
FeCl2 (aq) + H2S (g)
zinc chloride + ammonium sulfide →
ZnCl2 (aq) + (NH4)2S (aq)
ZnS (s) + 2 NH4Cl (aq)
ammonia + oxygen → nitric acid + water
NH3 (g) + 2 O2 (g)
HNO3 (aq) + H2O (l)
magnesium + nitric acid →
Mg (s) + 2 HNO3 (aq)
Mg(NO3)2 (aq) + H2 (g)
potassium + water →
2 K (s) + 2 H2O (l)
2 KOH (aq) + H2 (g)
sodium iodide + bromine →
2 NaI (aq) + Br2 (l)
2 NaBr (aq) + I2 (s)
silver + sulfur →
16 Ag (s) + S8 (s)
8 Ag2S (s)
sodium chlorate →
2NaClO3 (s)
2 NaCl (s) + 3 O2(g)
carbon + steam → carbon monoxide + hydrogen
C (s) + H2O (g)
CO (g) + H2 (g)
zinc + lead(II) acetate →
Zn (s) + Pb(CH3COO)2 (aq)
Zn(CH3COO)2 (aq) + Pb (s)
iron(II) hydroxide →
Fe(OH)2 (s)
FeO (s) + H2O (l)
iron(III) oxide + carbon monoxide → iron + carbon dioxide
Fe2O3 (s) + 3 CO (g)
2 Fe (s) + 3 CO2 (g)
lead(II) acetate + hydrogen sulfide →
Pb(CH3COO)2 (aq) + H2S (g)
PbS (s) + 2 HCH3COO (aq)
aluminum bromide + chlorine →
2 AlBr3 (aq) + 3 Cl2 (g)
2 AlCl3 (aq) + 3 Br2 (l)
magnesium carbonate →
MgCO3 (s)
MgO (s) + CO2 (g)
iron(III) chloride + sodium hydroxide →
FeCl3 (aq) + 3 NaOH (aq)
Fe(OH)3 (s) + 3 NaCl (aq)
precipitation
redox – more active metal
exchange – active metal
precipitation
redox
redox – acid replace metal
redox – more active metal
redox – more active halogen
synthesis
decomposition
redox – more active metal
redox – more active metal
decomposition
redox – more active metal
precipitation
redox – more active halogen
decomposition
precipitation
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calcium oxide + diphosphorus pentoxide → calcium phosphate
3 CaO (s) + P2O5 (s)
Ca3(PO4)2 (s)
synthesis
chromium + oxygen →
4 Cr (s) + 3 O2 (g)
2 Cr2O3 (s)
synthesis
sodium + water →
2 Na (s) + 2 H2O (l)
2 NaOH (aq) + H2 (g)
redox – more active metal
calcium carbonate + hydrochloric acid →
CaCO3 (s) + 2 HCl (aq)
CaCl2 (aq) + H2O (l) + CO2 (g)
replacement & decomp.
calcium hydroxide + phosphoric acid →
3 Ca(OH)2 (aq) + 2 H3PO4 (aq)
Ca3(PO4)2 (s) + 6 H2O (l) acid-base -- neutralization
sodium carbonate + nitric acid →
Na2CO3 (aq) + 2 HNO3 (aq)
2 NaNO3 (aq) + H2O (l) + CO2 (g)
exchange – gas form.
aluminum hydroxide + sulfuric acid →
2 Al(OH)3 (s) + 3 H2SO4 (aq)
Al2(SO4)3 (aq) 6 H2O (l)
acid-base -- neutralization
sodium sulfite + sulfuric acid →
Na2SO3 (aq) + H2SO4 (aq)
Na2SO4 (aq) + H2O (l) + SO2 (g)
replacement/decomp
copper + sulfuric acid → copper(II) sulfate + water + sulfur dioxide
Cu (s) + 2 H2SO4 (aq)
CuSO4 (aq) + 2 H2O (l) + SO2 (g) replacement/decomp.
calcium hydroxide + ammonium sulfate → calcium sulfate + water + ammonia
Ca(OH)2 (s) + (NH4)2SO4 (aq)
CaSO4 (s) + 2 H2O (l) + 2 NH3 (g) replacement/decomp.
carbon + oxygen →
C (s) + O2 (g)
CO2 (g)
redox -- combustion
sodium + chlorine →
2 Na (s) + Cl2 (g)
2 NaCl (s)
synthesis
magnesium + oxygen →
2 Mg (s) + O2 (g)
2 MgO (s)
synthesis/combustion
hydrogen peroxide →
2 H2O2 (aq)
2 H2O (l) + O2 (g)
redox/decomposition
barium chloride →
BaCl2 (s)
Ba (s) + Cl2 (g)
redox/decomposition
water →
2 H2O (l)
2 H2 (g) + O2 (g)
redox/decomposition
copper + silver nitrate →
Cu (s) + 2 AgNO3 (aq)
Cu(NO3)2 (aq) + 2 Ag (s)
redox – more active metal
sodium bromide + silver nitrate →
NaBr (aq) + AgNO3 (aq)
NaNO3 (aq) + AgBr (s)
precipitation
calcium nitrate + potassium sulfate →
Ca(NO3)2 (aq) + K2SO4 (aq)
CaSO4 (s) + 2 KNO3 (aq)
precipitation
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potassium chloride + lead(II) nitrate →
2 KCl (aq) + Pb(NO3)2 (aq)
PbCl2 (s) + 2 KNO3 (aq)
precipitation
calcium hydroxide + iron(III) nitrate→
3 Ca(OH)2 (s) + 2 Fe(NO3)3 (aq)
3 Ca(NO3)2 (aq) + 2 Fe(OH)3 (s)
precipitation
magnesium sulfate + sodium phosphate →
3 MgSO4 (aq) + 2 Na3PO4 (aq)
Mg3(PO4)2 (s) + 3 Na2SO4 (aq)
precipitation
potassium hydroxide + aluminum chloride →
3 KOH (aq) + AlCl3 (aq)
3 KCl (aq) + Al(OH)3 (s)
precipitaion
mercury(II) oxide →
2 HgO (s)
2 Hg (l) + O2 (g)
decomposition
sulfur trioxide + water →
SO3 (g) + H2O (l)
H2SO4 (aq)
composition
calcium bromide + chlorine →
CaBr2 (aq) + Cl2 (g)
CaCl2 (aq) + Br2 (l)
redox – more active halogen