Thermal expansion or thermal contraction would be most noticeable in which of the following

How do you convert 4 mmol of bromobenzene to ml?

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

Due tomorrow which would have a lower ph, a 0.1 m solution of a strong base or a weak base? why? which would have a higher ph, a 0.1 m solution of a strong base or a weak base? why?