1. The following chemical equation represents the reaction between hydrogen and chlorine to form hydrogen chloride. H2(g) + Clace) = 2HCl + 183.92 kJ a. List four important pieces of information conveyed by this equation. b. What are three important areas of interest concerning this reaction for which no information is indicated? 2. What is the effect on the equilibrium concentration of each substance in the system (increase, decrease or no change) when the listed reagents are added? a. H2(g) is added to the system described by: CHEC) Hzca) + C,Ham) b. heat is added to the system described by: CO + 0,00 CO30) + heat c. CuSO4(9) is added to the system described by: Cu**) + 4NH3(0) = Cu(NH4)2(n) d. Pb(NO3)2(8) is added to the system described by: PbSO4 + H 2 Pb) + HSO. () e. AgCl(s) is added to the system described by: Ag co + C (0) AgCl) 3. The following equation represents one method for making methanol: COCO + 2H2(0) CH,OH + heat Predict the effect on the equilibrium concentrations of all substances it: a. the temperature is increased. b. the pressure is increased. 4. What would happen in each of the following systems at equilibrium if the total pressure is increased? The reactants and products are all gases. a. Hl is formed from hydrogen and iodine b. H2S is formed by reacting hydrogen and sulphur 5. Consider the following system: A + 2B = 200) + 2D AH= 21 kJ/mol Which of the following choices will increase the quantity of C? a. adding a catalyst b. decreasing the [B] c. increasing the pressure d. increasing the temperature 6. Acetic acid dissociates according to the following equation. CH,COOH) HAO + CH,COOCR) Which of the following will occur if sodium acetate, NaCH3COO, is added to the solution? a. a precipitate will be formed b. more acetic acid will be ionized c. the concentration of hydrogen ions will decrease d. the solution will become more acidic