When 542 mL of O2 gas at 30°C and 1.04 atm is cooled to -40°C and the pressure is in-
creased to 2.4 atm what is the new volume of
this gas sample?
Answer in units of mL.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles