1. Writing Chemical Equations “Translate” written equation into a chemical equation with formulas and symbols; then balance the equation and tell what type of reaction it is.

2. Solid calcium oxide is added to sulfur trioxide gas, producing crystals of calcium sulfate CaO (s) + SO 3 (g)  CaSO 4 (s) Synthesis rxn

3. Fluorine gas is bubbled through a solution of aluminum chloride, producing chlorine gas and aqueous aluminum fluoride 3F 2 (g) + 2AlCl 3 (aq)  3Cl 2 (g) + 2AlF 3 (aq) Single replacement rxn

4. Solutions of cobalt (II) chloride and silver nitrate are mixed, forming silver chloride precipitate in cobalt (II) nitrate solution CoCl 2 (aq) + 2AgNO 3 (aq)  2AgCl (s) + Co(NO 3 ) 2 (aq) Double replacement rxn

5. pieces of strontium metal are added to lead (II) acetate solution, forming lead metal and aqueous strontium acetate Sr (s) + Pb(CH 3 COO) 2 (aq)  Pb (s) + Sr(CH 3 COO) 2 (aq) Single replacement rxn

6. Crystals of magnesium chlorate are heated, releasing oxygen gas and leaving behind magnesium chloride powder heat Mg(ClO 3 ) 2 (s)  3O 2 (g) + MgCl 2 (s) Decomposition rxn

7. Rubidium phosphate and titanium (IV) nitrate react in aqueous solution to form a titanium (IV) phosphate precipitate and rubidium nitrate solution 4Rb 3 PO 4 (aq) + 3Ti(NO 3 ) 4 (aq)  12RbNO 3 (aq) + Ti 3 (PO 4 ) 4 (s) Double replacement rxn

8. Electric current is run through molten sodium iodide, yielding sodium metal and solid iodine elec. 2NaI (l)  2Na (s) + I 2 (s) Decomposition rxn

9. Solid sodium metal is added to a solution of aluminum nitrate producing a solution of sodium nitrate and a piece of aluminum. 3Na (s) + Al(NO 3 ) 3 (aq)  3NaNO 3 (aq) + Al (s) Single replacement rxn