Calculate the mass of CO2 that can be produced if the reaction of 54.0 g of propane and sufficient oxygen has a 64.0% yield.

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.