4. The picture shows a full moon. Which sentence explains why the moon appears to be a full circle?
A. The moon is facing away from Earth.
B. The moon is at its closest distance from Earth.
C. The entire lighted half of the moon directly faces Earth.
D. The part of the moon in Earth's shadow faces the sun.

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