What volume is needed to store 0.050 moles of helium gas at 2 atm and 400k?

Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.

Embryos of different species look very similar, which shows that the organisms share a ancestor.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?