Can someone plz answer my chem question pl list or draw two ways to visually represent c6h14

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy