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Chemistry HSC

chemical monitoring and management

QuestionAnswer
Complete combustion formula: propane + oxygen carbon dioxide + water C3H8 (g) + 5O2 (g) 3CO2 (g) + 4H2O (g)
Incomplete combustion formula: propane + oxygen carbon + carbon monoxide + water C3H8 (g) + 3O2 (g) C (s) + 2CO (g) + 4H2O (g)
Haber Process formula: nitrogen + hydrogen <-> ammonia + heat N2 (g) + 3H2 (g) <-> 2NH3 (g) ∆H = -92 kJ/mol
Sulfate Content in Fertilizer formual: Barium chloride + sulfate <-> barium sulfate + chloride BaCl2 (aq) + SO42- (aq) <-> BaSO4 (s) + 2Cl- (aq)
The Heavy-Metal Sulfide Test:  The sulfide-test is based on the following equilibrium: S2- (aq) + 2H3O+ (aq) <-> H2S (aq) + 2H2O (l)
acid + base salt + water
acid + metal salt + hydrogen gas
acid + carbonate carbon dioxide gas + salt + water
hydrocarbon + oxygen water + carbon dioxide
Y + X (anion) X + Y (anion); where Y > X on activity series.
Cracking of pentane: pentane --> ethylene + propane C5H12 (g) --> C2H4 (g) + C3H8 (g)
Hydrogenation of ethylene: ethylene + hydrogen --> ethane C2H4 (g) + H2 (g) --> C2H6 (g)
Hydration of ethylene: ethylene + water -->(h3PO4 cat) ethanol C2H4 (g) + H2O (l) --> C2H5OH (l)
Halogenation (more specifically, Chlorination) of ethylene: ethylene + chlorine 1,2-dichloroethane C2H4 (g) + Cl2 (g) --> C2H4Cl2 (l)
Hydrohalogenation (more specifically, Hydrofluorination) of ethylene: ethylene + hydrogen fluoride --> fluoroethane C2H4 (g) + HFl (g)--> C2H5Fl (g)
cyclohexene + bromine + water (formula) 2-bromo-1-cyclohexanol + hydrogen bromide C6H10 (l) + Br2 (aq) + H2O (l) --> C6H10BrOH (l) + HBr (aq)
Dehydration of ethanol (formula) ethanol --> (H2SO4) ethylene + water C2H5OH (l) --> (H2SO4) C2H4 (g) + H2O (l)
ethanol + oxygen carbon dioxide + water (give formula) C2H5OH (l) + 3O2 (g) --> 2CO2 (g) + 3H2O (g)
glucose ethanol + carbon dioxide (give formula) C6H12O6 (aq) -->( +yeast) 2C2H5OH (aq) + 2CO2 (g)
zinc + copper sulfate zinc sulfate + copper (give formula) Zn (s) + CuSO4 (aq) --> ZnSO4 (aq) + Cu (s)
zinc + copper(II) ion + sulfate ion --> zinc(II) ion + sulfate ion + copper Zn + Cu2+ + SO42- --> Zn2+ + SO42- + Cu
zinc + copper(II) ion --> zinc(II) ion + copper Zn (s) + Cu2+ (aq)--> Zn2+ (aq) + Cu (s)
Created by: venezna
 

 



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