Chemical equations serve a variety of purposes, but the mostgeneral form of a chemical equation is reactants -> products.Most often, reactants and products are described by their chemicalformula, possibly including a designation of state of matter.Contrary to a general chemical equation, a balanced chemicalequation always uses molecular formulas and is amended bystoichiometric factors to assure conservation of mass and/ormoles.

Chemical equations represent chemical reactions, and chemicalreactions can be classified according to two groups:

Group I (bond breakage and/or bond formation): The four reactiontypes are Synthesis, Decomposition, Single Displacement, DoubleDisplacement.

Group II (common reaction principles): Representative examplesare Precipitation, Redox, Acid-Base, Combustion. Choose from thefollowing general chemical equations, and illustrate the fourprinciple group I reaction types, and the four representative groupII reaction types:

A) aqueous potassium sulfate + aqueous barium nitrate ->aqueous potassium nitrate + solid barium sulfate

B) magnesium metal + nitrogen gas -> solid magnesiumnitride

C) copper metal + aqueous silver nitrate -> aqueous coppernitrate + silver metal

D) chlorine gas + fluorine gas -> chlorine monofluoridegas

E) aqueous hydrochloric acid + aqueous calcium hydroxide ->aqueous calcium chloride + water

F) gaseous sulfur dioxide + oxygen gas -> gaseous sulfurtrioxide

G) solid calcium carbonate -> solid calcium oxide + gaseouscarbon dioxide

H) solid silver oxide -> oxygen gas + silver metal

When you discuss reaction types, formulate the chosen generalequation as balanced chemical equation.

Any given equation might serve as an example for a group I aswell as for a group II reaction, but try to use as many differentequations as possible.