If you make 100 different measurements, what single value/type would you use to describe your measurement? or How would you summarize your measurements?

How many atoms are there in 5.70 mol of mg

Why is the melting of ice a physical change ?

Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .