If a gas has a pressure of 720 torr, a volume of 256 mL and a temperature of 298 K, what would its new pressure be if its volume was decreased to
250 mL and the temperature was raised to 323 K?

Classify this reaction: 2al+n2-> aln.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.