Is aluminum foil a:
A. Heterogeneous mixture
B. Homogeneous mixture
C. Pure substance

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?