Chapter 8 Worksheet #1 - Loudoun County Public Schools



Reactions Worksheet #4

Write balanced products or “No RXN” if no reaction will take place. Underneath each reaction identify what category the reactions fit into. (Precipitation, double displacement, oxidation-reduction, single displacement, combustion, synthesis, decomposition, acid-base) More than one classification may apply. (1 point)

1. _2_ Fe(OH)3 (s) [pic] Fe2O3 (s) + H2O (l)

Type of Reaction: DECOMPOSITION

2. ___ H2SO4 (aq) [pic] SO3 (g) + H2O (l)

Type of Reaction: DECOMPOSITION

3. _2_ NaI (aq) + ___ Br2 (l) ( 2 NaBr (aq) + I2 (s)

Type of Reaction: SINGLE DISPLACEMENT, REDOX

4. _3__ NaOH (aq) + ___ H3PO4 (aq) ( Na3PO4 (aq) + 3 H2O (l)

Type of Reaction: DOUBLE DISPLACEMENT, ACID/BASE

5. ___ Pb(C2H3O2)2 (aq) + ___ H2S (aq) ( PbS (s) + 2 HC2H3O2 (aq)

Type of Reaction: DOUBLE DISPLACEMENT, PRECIPITATION

6. ___ Ca(OH)2 (aq) + _2_ HCl (aq) ( CaCl2 (aq) + 2 H2O (l)

Type of Reaction: DOUBLE DISPLACEMENT, ACID/BASE

7. _2_ Zn (s) + ___ O2 (g) ( 2 ZnO (s)

Type of Reaction: SYNTHESIS, REDOX

8. _2_ C6H14 (g) + _19_ O2 (g) ( 12 CO2 (g) + 14 H2O (g)

Type of Reaction: combustion

9. ___ C2H4 (g) + _3_ O2 (g) ( 2 CO2 (g) + 2 H2O (g)

Type of Reaction: combustion

10. _2_ NaCl (aq) [pic] 2 Na (s) + Cl2 (g)

Type of Reaction: DECOMPOSITION, REDOX

11. ___ Ca (s) + ___ H2O (l) ( CaO (s) + H2 (g)

Type of Reaction: SINGLE DISPLACEMENT, REDOX

12. ___ Cu (s) + ___ NiSO4 (aq) ( NO RXN

Type of Reaction: SINGLE DISPLACEMENT, REDOX

13. ___ H2CO3 (aq) ( H2O (l) + CO2 (g)

Type of Reaction: DECOMPOSITION

14. _2_ K (s) + ___ Cl2 (g) ( 2 KCl (aq)

Type of Reaction: SYNTHESIS, REDOX

15. ___ Ni (s) + ___ MgSO4 (aq) ( No RXN

Type of Reaction: SINGLE DISPLACEMENT, REDOX

16. ___ (NH4)2SO4 (aq) + ___ BaCl2 (aq) ( 2 NH4Cl (aq) + BaSO4 (s)

Type of Reaction: DOUBLE DISPLACEMENT, PRECIPITATION

21. ___ SO2 (g) + ___ MgO (s) ( MgSO3 (?)

Type of Reaction: SYNTHESIS

22. ____ CoBr2 (aq) ( Co (s) + Br2 (l)

Types of Reaction: DECOMPOSITION, REDOX

23. ____ Na2S (aq) + ____ Ni(NO3)2 (aq) ( 2 NaNO3 (aq) + NiS (s)

Types of Reaction: DOUBLE DISPLACEMENT, PRECIPITATION

24. ____ CH4 (g) + __2_ O2 (g) ( CO2 (g) + 2 H2O (g)

Type of Reaction: COMBUSTION

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