Please answer in format required. Thanks!

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

50 pts plz what is the physical state of matter of baking soda.

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