A Moving to another question will save this response. Question 18
The density of an alcohol is 0.788 g/mL. What volume in microliters, ul, will correspond to a mass of 20.500 mg?
OA
26.0 L
B. 2.60 x 104 L
C 2.60 x 10-2 L
D. 16.2 ul
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Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?