What do ionic bond and covelant bond have in common?

A) Both types of bond involve only one electron

B) both type of bonds involve valance electrons

C) electrons are transferred from one atom to another in both types of bonds

D) Electrons are shared between atoms in both types of bonds

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