How many liters of o2 would be needed to produce 34.5g H2O with excess CH4

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Draw the structure for 5-isopropyl-2-methyl-3-nonene