A chemistry student needs 30 ml of acetone for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of acetone is 0.790 g . cm^-3 . Calculate the mass of acetone the student should weigh out. Round your answer to significant digits.

The ph of carrots are 5.0 how it is classified a.acidic b.basic c.indicator d.neutral

Which element would mostly likely have an electron affinity measuring closest to zero

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.