which statement would be the most useful for deriving the ideal gas law?
volume is directly proportional to the number of moles,
volume is inversely proportional to the temperature,
pressure is directly proportional to the volume,
pressure is inversely proportional to the number of moles.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy