Which of the following is necessary for photosynthesis? OA.
OB.
OC.
OD.
calcium
water
glucose
Oxygen

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

All of the following are part of the biosphere except

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