30.0 g samples of liquid ethanol and water are heated at their respective boiling points. Which sample will need more heat (G) to vaporize
completely? AHvap (ethanol) = 200 Jig; AHvap (water) = 540 Jig:
Remember = m*AH

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Define dew point. i am writing this part to be able to ask the question

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.