A 250. mL sample of oxygen is collected over water at 25 "C and 760.0 torr pressure. What is the pressure of the dry gas alone? (vapor pressure of water at 25 °C = 23.8 torr)

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

Draw two cyclic constitutional isomers of cis-1