Calculate the density of Substance X if 35.0 mL of the substance has a total mass of 120 g in a cup that has a mass of 15 g.

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of