A gas at a pressure of 125 torr was enclosed in a piston with a volume of 750 mL. What pressure would the gas exert if the piston were compressed to a volume of 250 mL while holding the temperature constant?

im not exactly sure but i think its b!

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).