A scoop of potassium oxide was placed in 55 grams of water which produced 67 grams of potassium hydroxide. What mass of potassium oxide was used?

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors

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.