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Milan Sanader
Course: SNC 2D -C
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Classifying Reactions and Balancing Chemical Equations
Part A: For each of the chemical reactions that are listed below, balance the skeletal equation and state the type of
chemical reaction.
1. Balance the skeletal equation: Cu + O2 þ CuO
Reaction type: _________________________________________
2. Balance the skeletal equation: H2 O þ O2 + H2
Reaction type: _________________________________________
3. Balance the skeletal equation: Fe + H2 O þ Fe2 O3 + H2
Reaction type: _________________________________________
4. Balance the skeletal equation: H2 S + AsCl3 þ As2 S3 + HCl
Reaction type: _________________________________________
5. Balance the skeletal equation: CaCO3 þ CO2 + CaO
Reaction type: _________________________________________
6. Balance the skeletal equation: H2 S + KOH þ K2 S + HOH
Reaction type: _________________________________________
7. Balance the skeletal equation: S8 + Fe þ FeS
Reaction type: _________________________________________
8. Balance the skeletal equation: H2 SO4 + Al þ Al2 (SO4 )3 + H2
Reaction type: _________________________________________
9. Balance the skeletal equation: H3 PO4 + NH4 OH þ (NH4 )3 PO4 + HOH
Reaction type: _________________________________________
10. Balance the skeletal equation: O2 + Al þ Al2 O3
Reaction type: _________________________________________
11. Balance the skeletal equation: H2 SO4 + Al(OH)3 þ Al2 (SO4 )3 + HOH
Reaction type: _________________________________________
12. Balance the skeletal equation: Cl2 + KBr þ KCl + Br2
Reaction type: _________________________________________
13. Balance the skeletal equation: Ca + HOH þ Ca(OH)2 + H2
Reaction type: _________________________________________
14. Balance the skeletal equation: Hn2 O2 þ O2 + H2 O
Reaction type: _________________________________________
15. Balance the skeletal equation: Na + Cl2 þ NaCl
Reaction type: _________________________________________
16. Balance the skeletal equation: Zn + Pb(NO3 )2 þ Zn(NO3 )2 + Pb
Reaction type: _________________________________________
17. Balance the skeletal equation: NaI + Pb(NO3 )2 þ NaNO3 + PbI2
Reaction type: _________________________________________
18 Balance the skeletal equation: P4 + O2 þ P2 O5
Reaction type: _________________________________________
19. Balance the skeletal equation: NH4 NO3 þ H2 O + N2 O
Reaction type: _________________________________________
20.Balance the skeletal equation: CaI2 + AgNO3 þ Ca(NO3 )2 + AgI
Reaction type: _________________________________________
Part 2: Write the skeleton equation, balance it and then name the type of reaction.
21. copper (II) oxide + hydrogen þ copper + water
Skeleton equation _____________________________________
Chemical equation _____________________________________
Type of reaction _____________________________________
22. lead (II) nitrate + potassium iodide þ lead (II) iodide + potassium nitrate
Skeleton equation _____________________________________
Chemical equation _____________________________________
Type of reaction _____________________________________
23. calcium + water þ calcium hydroxide + hydrogen gas
Skeleton equation _____________________________________
Chemical equation _____________________________________
Type of reaction _____________________________________
24. lead (II) sulfide + oxygen þ lead + sulfur dioxide
Skeleton equation ______________________________________
Chemical equation ______________________________________
Type of reaction ______________________________________
25. hydrogen sulfide þ hydrogen + sulfur
Skeleton equation _____________________________________
Chemical equation _____________________________________
Type of reaction _____________________________________
26. gasoline + oxygen þ carbon dioxide + water
Skeleton equation ______________________________________
Chemical equation ______________________________________
Type of reaction ______________________________________
(The chemical formula for gasoline is C7 H16 )
27. iron + oxygen þ iron oxide
Skeleton equation _______________________________________
Chemical equation _______________________________________
Type of reaction _______________________________________
28. potassium + bromine þ potassium bromide
Skeleton equation _______________________________________
Chemical equation _______________________________________
Type of reaction _______________________________________
29. Magnesium + hydroxide þ magnesium hydroxide
Skeleton equation _______________________________________
Chemical equation _______________________________________
Type of reaction _______________________________________
30. Lithium + carbonate þ lithium carbonate
Skeleton equation _______________________________________
Chemical equation _______________________________________
Type of reaction _______________________________________