Describe the four levels of heat preservation used by the food industry.

Which material burns faster? metal aluminum

Once similarity and one difference between a mixture of elements and a mixture of compounds

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.