Identify reaction type

Agenda review balancing Check equations I Write explaining how to balance. Class notes: ID reaction types Demos Homework: Equation II

Provide symbol or ratio of coefficients

Solid Reacts to form Mg(s) + SiO2(s) MgO(s) + Si(s)

C6H6(l) + O2(g) CO2(g) + H2O(g)

Al2S3(s) + H2O(l) Al(OH)3(aq) + H2S(g)

1.      copper + nitric acid copper (II) nitrate + hydrogen

Cu(s) + 2 HNO3(aq) Cu(NO3)2(aq) + H2(g)

1:2:1:1

2. zinc + copper (I) sulfate zinc sulfate + copper

Zn(s) + Cu2SO4(aq) ZnSO4(aq) + 2Cu(s)

1:1:1:2

3. silver nitrate + sodium bromide sodium nitrate + silver bromide

AgNO3(aq) + NaBr(aq) NaNO3(aq) + AgBr(aq)

1:1:1:1

4. iron + sulfur iron (III) sulfide

2 Fe(s) + 3 S(s) Fe2S3(s)

2:3:1

5. iron (III) chloride + ammonium hydroxide iron (III) hydroxide + ammonium chloride

FeCl3(aq) + 3NH4OH(aq) Fe(OH)3(s) + 3NH4Cl(aq)

1:3:1:3

6. potassium chlorate potassium chloride + oxygen

2KClO3 2KCl + 3O2

2:2:3

7. magnesium chloride + ammonium nitrate magnesium nitrate + ammonium chloride

MgCl2(aq) + 2NH4NO3(aq) Mg(NO3)2(aq) + 2NH4Cl(aq)

1:2:1:2

8. water hydrogen + oxygen

2H2O(l) 2H2(g) + O2(g)

2:2:1

9. aluminum + sulfuric acid aluminum sulfate + hydrogen

2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g)

2:3:1:3

10. mercury (II) oxide mercury + oxygen

2HgO(s) 2Hg(l) + O2(g)

2:2:1

11. potassium iodide + lead (II) nitrate lead (II) iodide + potassium nitrate

2KI(aq) + Pb(NO3)2(aq) PbI2(s) + 2KNO3(aq)

2:1:1:2

12. aluminum + oxygen aluminum oxide

4Al(s) + 3O2(g) 2Al2O3(s)

4:3:2

13. sodium peroxide + water sodium hydroxide + oxygen

2Na2O2(aq) + 2H2O(l) 4NaOH(aq) + O2(g)

2:2:4:1

14. iron (III) chloride + potassium hydroxide potassium chloride + iron (III) hydroxide

FeCl3(aq) + 3KOH(aq) 3KCl(aq) + Fe(OH)3(s)

1:3:3:1

15. zinc + hydrochloric acid zinc chloride + hydrogen

Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g)

1:2:1:1

16. hydrogen peroxide water + oxygen

2H2O2(aq) 2H2O(l) + O2(g)

2:2:1

17. copper (II) nitrate + aluminum aluminum nitrate + copper

3Cu(NO3)2(aq) + 2Al(s) 2Al(NO3)3(aq) + 3Cu(s)

3:2:2:3

18. barium hydroxide + ammonium chloride barium chloride + ammonia + water

Ba(OH)2(aq) + 2NH4Cl(aq) BaCl2(aq) + 2NH3(g) + 2H2O(l)

1:2:1:2:2

19. hydrochloric acid + sodium hydroxide sodium chloride + water

HCl(aq) + NaOH(aq) NaCl(aq) + H2O(l)

1:1:1:1

20. lithium + water lithium hydroxide + hydrogen

2Li(s) + 2H2O(l) 2LiOH(aq) + H2(g)

2:2:2:1

Write

Explain how to balancing selecting one of the questions on this worksheet.

You are teaching one of the freshmen in physical science.

Identifying Reaction Type

Date

How many reactants?

1 2

Decomposition

1 reactant 2 products

comBustion

Hydrocarbon + O2 CO2 + H2O

Single Replacement

1 element + 1 compound 1 element + 1 compound

Double Replacement

2 compound 2 compound

Combination

2 reactant 1 compound

Identification of Reactions

Sparklers Methane bubbles Nickel (II) nitrate plus phosphoric acid Alkali metals with water Sugar