CHEMISTRY PLEASE HELP!! You have 45 grams of Carbon (C). How many moles of Carbon do you have? Use the drop down selections to help you fill in the table and solve the problem.

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

When curium-242 is bombarded with an alpha particle, two products are formed, one of which is a nudge on. what is the other product

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm