1. what is happening to the electrons in a covalent bond? 2. what type of elements form covalent bonds?
3. describe what’s happening in the potential energy graph as the 2 nuclei are moved closer together?
4. where are atoms the most stable?

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

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

The organs inside the body and how they function together