The molar enthalpy of vaporization of hexane (CH14) is 28.9 kl/mol, and its normal boiling point is 68.73 C What is the vapor pressure of hexane at 25°C?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize