How many moles of H20 are needed to produce 1 mole of O2 in the following equation? 2H2O + 2H2 + 102

How do scientists think that gravity affected the formation of our solar system?

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.