Are all elements abbreviated with one or two letters? If not, name some that aren't.

Real gases behave as ideal gases only when they are at Select one: a. high temperature and high pressure b. low temperature and high pressure c. high temperature and low pressure d. low temperature and low pressure

Aurelie is doing a lab in her chemistry class. Her teacher defined a calorie as the amount of energy needed to raise the temperature of one gram of water one degree Celsius.

A chemistry student needs 55.0g of dimethyl sulfoxide for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of dimethyl sulfoxide is ·1.10gcm-3.

According to the collision theory which of the following changes would increase the rate of a reaction between vinegar and sodium hydroxide

What is climate? (site 2)

The difference between ionic covalent and metallic bonding

As the speed of a particle increases, does its associated wavelenght increase or decrease

The composition of air by volume is approximately 1/5 oxygen, 4/5 nitrogen. When air is passed through red-hot carbon, the following reaction occurs: 2C + O2 (g) 2CO (g).

How many atomic mass units are equal to 1.672*10-24 g of protons?

What is the name of the compound Sr3N2?