Which property below will be the best one to use to most accurately identify a pure substance because it is unique to each pure substance? hardness

brittleness

odor

density

What is the ph of a solution with a concentration of 5.2 × 10–8 m h3o+?

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

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?