What is the molarity of a CuSO4 solution when 30 grams of solute are added to 250 mL of water?
A-0.005M
B-.12M
C-0.47M
D-120M

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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