How many ml of 2.50 M NaOH solution are required to make a 525 mL of 0.150 M?

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles