Calculate the work done when a force of 500N moves an object 20m. and (B) if it took 10 seconds to move it, what was the power? *

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.