In which form do many minerals occur naturally on the earth’s surface? rocks plants streams water

This is a mixture that has the same composition throughout.

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

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro