9. Given the reaction shown, what should be done with temperature to cause an increase in the concentration of reactants? Show your logic using shorthand arrows used in Le Chatelier's Principle. 2HF (g) <--> F2(g) + H2(g) AHO = -12.0 kJ/mol

In Question 4 what is the value of AH in kJ for each of the three given reactions as well as the overall reaction once all mathematical changes have been applied? Reaction #1:CH2 Cl2(1) + O2(s) → COC2(3) + H2O(1) Reaction #2:HCl(g) → H2(s) + ¿Cl2(g) Reaction #3: CH2 Cl20) + H2(e) + O2(e) → COC2(e) +2H2O@) → COCl (8) +2H2O1) Overall Reaction:2 HClg) + ¿O2(g) → H2O(g) + Cl2(g) Be sure to include the proper number of significant figures in your answer otherwise it will be marked wrong. REMEMBER TO INCLUDE units in your answer and leave a space between the answer and unit. Blank # 1 Blank # 2 Blank # 3 Blank # 4

Determine how the following changes affect the given equilblirium reaction that is held in a closed container. 2 A(g) + B(I) = C(g) + 2 D(s) AH°rxn = 0.500 kJ/mol Adding some A(g) Adding some D(s) Adding some B(I) Decreasing the temperature Decreasing the volume of the container A Moving to another question will save this response. MacBook Pro esc ! @ # % & * 1 3 7 8. 9. Q W E R Y tab A S D F G H J K caps lock C V M shift control option command CO V

When potassium chloride reacts with oxygen under the right conditions, potassium chlorate is formed: 2 KCl +3 02 → 2 KC103 39 kJ/mol 78 kJ/mol O O-78 kJ/mol -39 kJ/mol G