8.) How many atoms are in 104.23 g of Copper?

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

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

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize