Reactions

For the following equations, give the type of reaction and predict the products 2K(s) + Br2(l)  Synthesis #1 KBr

AgNO3(aq) + NaCl(aq) ® Double replacement #1 AgCl(s) + NaNO3(aq)

HCl(aq) + KOH(aq) ® Double replacement #3 H2O(l) + KCl(aq)

2Ag2O(s) ® Decomposition #1 4Ag(s) + O2(g)

CH4(l) + 2O2(g) ® Combustion CO2(g) + 2H2O(g)

Zn + 2HCl ® Single Replacement #3 ZnCl2 + H2

NaBr + I2 Single Replacement #4 No Reaction

H2SO4 + BaCl2 ® Double Replacement #1 BaSO4  + 2HCl

Solutions of sodium carbonate and hydrochloric acid are mixed. Double Replacement #2 Sodium chloride, water and carbon dioxide Write a balanced equation with all phase symbols. Na2CO3 (aq) + 2HCl (aq)  2NaCl (aq) + H2O (l) + CO2

Propanol (C3H7OH) is burned. Combustion CO2+ H2O Balance the equation. 2 C3H7OH + 9O2  6CO2+ 8H2O

Lithium + Oxygen  Synthesis #1 Li2O

Calcium chlorate  Decomposition #5 CaCl2 + O2

Ca + H2O  Single replacement #2 Ca(OH)2 + H2

Sulfur dioxide + water Synthesis #4 Sulfurous acid Write a balanced equation SO2 + H2O  H2SO3

Aqueous solutions of sodium sulfide and copper(II) chloride are mixed together. Type of reaction? Double replacement #1 If a precipitate forms, what is its formula? CuS

Aqueous solutions of potassium sulfate and ammonium nitrate are mixed together. Which statement is correct? Both KNO3 and NH4SO4 precipitate from solution. A gas is released. NH4SO4 will precipitate from solution. KNO3 will precipitate from solution. No reaction will occur. Answer: E

Which of the following compounds is soluble in water? Ni(OH)2 K3PO4 BaSO4 CoCO3 PbCl2 Answer: B