Liquid nitrogen is very cold. At room tempature it changes into a gas. This is an example of:

A) Evaporation

B) Sublimation

C) Melting

D) Boling

(Its not answer b)

Convert 8,740 cm3 to liters. 0.874 L 8.74 L 874 L 8740 L

A sample of an ideal gas at 15.0 atm and 10.0 l is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. calculate the work in units of kj for the gas expansion.

How many moles of ethyl alcohol, C2H6O, are in a 18.0 g sample?

Which of the following is a result of a change in pressure? A. Exfoliation B. Chemical feathering C. Oxidation D. Frost wedging

Change 2.6 km/day to m/week

What would make bromine a group 17 element more similar to a noble gas

Use the following chemicals. ethanol, hexane, butanone, water, benzene, diethyl ether, ethyl acetate, acetone 4. Rank the solvents based on polarity, smallest to largest.

How long will it take for the concentration of xy to decrease to 12.5% of its initial concentration when the initial concentration is 0.100?

Which has a higher energy level 6d or 5s?

How far is the Earth for the moon?