1. A sample of oxygen gas has a volume of 150 ml when its pressure is 440 mmHg. If the pressure is Increased to standard pressure and the temperature remains constant, what will the new volume be?

Iknow the answer is a but i don't know why

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology