What characteristic do photosynthesis and combustion share? a. they both start with chemical energy. b. they both are endothermic. c. they both occur in living organisms. d. they both involve chemical change.

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

How does a hydroelectric power plant converts energy into energy.

What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k