How many particles are in 4.5 grams of carbon (C)?

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo