Steel is an example of a pure substance because it is made up of two different metals melted together. (4 points) True False

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

What are the first three quantum numbers for the electrons located in subshell 2s?

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump