Chemical Equations Test Review.

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Presentation transcript:

Chemical Equations Test Review

2. Label the parts. Labeling of equation Fe(s) + CuSO4(aq) → Fe2(So4)3(aq) + Cu(s) yields products reactants

3. Classify the reaction (a) 2NaCl + Pb(NO3)2 → PBCL2 + 2Na(NO3) Double Replacement (b) H2 + Cl2 → 2HCl Synthesis (c) C2H8 + 4O2 →2CO2 + 4H2O Combustion (d) 2Li + 2H2O → 2LiOH + H2 Single Replacement (e) 2KNO3(s) → 2KNO2(s) + O2(g) Decomposition

4. Add coefficients to balance the equations 3 2 1 (a) ____Hf + ____N2 → ____Hf3N4 1 1 1 1 (b) ____Mg + ____H2 SO4 → ____ MgSO4 + ____H2 2 7 4 6 (c) ____C2H6 + ____ O2 → ____ CO2 + ____ H2O 1 2 1 2 (d) ____Pb(NO3)2 + ____NaI → ____PbI2 + ____NaNO3 2 2 4 1 (e) ____Pb(NO3)2 → ____PbO + ____NO2 + ____O2

KCl + AgNO3 → KNO3 + AgCl Write balanced chemical equations for each word equations (a) potassium chloride + silver nitrate → potassium nitrate+ silver chloride KCl + AgNO3 → KNO3 + AgCl

Al(OH)3 + 3NaNO3 → Al(NO3)3 + 3NaOH Write balanced chemical equations for each word equations (b) aluminum hydroxide + sodium nitrate → aluminum nitrate + sodium hydroxide Al(OH)3 + 3NaNO3 → Al(NO3)3 + 3NaOH

Fe + CuSO4 → FeSO4 + Cu Write balanced chemical equations for each word equations (c) iron metal + copper (II) sulfate → iron (II) sulfate + copper metal Fe + CuSO4 → FeSO4 + Cu

2Al+ 3CuCl2 → 2AlCl3 + 3Cu Write balanced chemical equations for each word equations (d) Aluminum metal + copper (II) chloride → aluminum chloride + copper metal 2Al+ 3CuCl2 → 2AlCl3 + 3Cu

2NaClO3 → 2NaCl + 3O2 Write balanced chemical equations for each word equations (e) Sodium chlorate → sodium chloride + oxygen gas 2NaClO3 → 2NaCl + 3O2

Ca(CO3 )→ CaO + CO2 Write balanced chemical equations for each word equations (f) calcium carbonate → calcium oxide + carbon dioxide gas Ca(CO3 )→ CaO + CO2

2Zn + O2 → 2ZnO Write balanced chemical equations for each word equations (g) zinc metal + oxygen gas → zinc oxide 2Zn + O2 → 2ZnO

Cl2 + 2Na → 2NaCl Write balanced chemical equations for each word equations (h) Chlorine gas + sodium metal → sodium chloride Cl2 + 2Na → 2NaCl

Al2(SO4)3 + 3BaCl2 → 2AlCl3 + 3BaSO4 Write balanced chemical equations for each word equations (i) aluminum sulfate + barium chloride → aluminum chloride + barium sulfate Al2(SO4)3 + 3BaCl2 → 2AlCl3 + 3BaSO4

BeF2 + Mg → MgF2 + Be Write balanced chemical equations for each word equations (j) beryllium fluoride + magnesium → magnesium fluoride + beryllium BeF2 + Mg → MgF2 + Be