What is the volume of 1 mole of helium gas when the pressure is 1.47 atm and the temperature is 287k

Why is it important to seal the mouth of the test tube

Gases in the atmosphere that trap solar energy a global warming b prevailing winds c La Nina d greenhouse gases

Rank from largest to smallest atomic radius. To rank items as equivalent, overlap them. A. Mg B. P C. Cl D. Al E. Ar

What is the major difference between the gc/ms spectra of vanillin and bromovanillin? g?

The highest elevation Mt. Zembat in Alaska 40 years ago was measured at 7600 feet. Today the highest elevation is 7598 feet. What is the rate of change in elevation for this mountain?

Calculate the [oh-] in a solution with a ph of 12.52.

Which of the following months would be the darkest at the South Pole? January December August February

The half-life of a certain radioisotope is 8 days. How much (mass) of a 80 mg sample will remain after 24 days?

BF3 type of compound

What direction do electrons flow in an electrolytic cell? A. From cathode to anode B. From anode to cathode C. Through the salt bridge D. From electrode to electrolyte