mr lee owns a toystore. he orders 20 toys consisting of airplanes cars and trains. the number of airplanes is 2,3

At Stp, which physical property of aluminum always remains the same from sample to sample?

What mass of hydrogen gas can be produced by 6.0 mol of aluminum with hydrochloric acid?

Compound formula: MgCl2 Element: Mg # of Atoms: 1 Element: Cl # of Atoms: 2 gram formula weight (g) : 95.21 What do the small numbers of 12, 22, and 11 stand for in C12H22O11? number of molecules atomic weight relative weight number of atoms

Imagine designing an experiment in which the presence of a gas is determined by simply listening to the gas with your ear. The human ear can detect pressures as low as 2 x 10^-5 N*m^-2.

What is mitosis in a living cell?

How have humans negatively impacted biodiversity?

Michael mixes two chemicals together in a beaker. The chemicals change color, and the beaker heats up quickly. What kind of change most likely occurred? A chemical change occurred. Only a physical change occurred. A mixture formed.

What type of wave contains compression and rarefaction

What is the science of stratigraphy

The deviation from ideal behavior of a gas is most evident at [x] and/or low temperature. The van der Waals equation corrects the ideal gas law for the finite volume and [y] of gas molecules. True / False.