If an atom has 6 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?

How does a hydroelectric power plant converts energy into energy.

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

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?