What is the mass of 1. 72 moles of sodium nitrate? Use the periodic table and the polyatomic ion resource. A. 85. 0 g B. 91. 2 g C. 146 g D. 273 g.

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.

What layer of the atmosphere is directly above the troposphere?

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?