CHEM 24112 Lecture Notes - Lecture 21: Barium Chloride, Sodium Fluoride, Iron(Iii) Sulfate
29 Jun 2018
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BALANCING CHEMICAL REACTIONS AND DETERMINING REACTION TYPES
1) Use the following ‘coding’ system to determine the reaction type and reaction pattern.
REACTION TYPES
A = Precipitation B = Acid/Base; Neutralization
C = Combustion D = Redox; Oxidation-reduction
E = Gas Forming
REACTION PATTERNS
1 = Combination/Synthesis 2 = Decomposition
3 = Single Replacement 4 = Double Displacement/Exchange
2) Balance each equation with the appropriate coefficients.
Type Pattern
________ H2 + ________ O2→ __________ H2O
________K2SO4 + ________BaCl2→ ________ KCl + ________BaSO4
________MgS → ________Mg + ________S4
________F2 + ________NaBr → ________NaF + ________Br2
________K + ________Fe2(SO4)3→ ________K2SO4 + ________Fe
________C2H4 + ________O2 → ________CO2 + ________H2O
________Al(OH)3 + ________H2SO4 → ________Al2(SO4)3 +________H2O
________Cl2 + ________FeI3 → ________FeCl3 + ________I2
________Na + ________Cl2 → ________NaCl
________C2H4 + ________O2 → ________CO + ________H2O
________LiI → ________Li + ________I2
________Al + ________HCl → ________AlCl3 + ________H2
3) Write and balance (both charge-balance and mass-balance) each of the following reactions.
a. Hydrogen gas and oxygen gas react to form water.
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