Which of the following species cannot act as a Lewis base?

NH2-

NH4+

NH3

N3-

NH2-

The atomic masses of two isotopes of silver are 105 and 111. The chemical symbol for silver is Ag. (a) What are the number of protons and neutrons in each of the two isotopes?

Nitrogen dioxide dimerizes to give dinitrogen tetroxide: 2NO2 (g) → N2O4 (g). At 298 K, 12.55 g of an NO2/N2O4 mixture exerts a pressure of 0.963 atm in a volume of 6.92 L. What are the mole fractions of the two gases in the mixture?

During a lightning storm, the Jones family notices their computer has shut off. When they turn it back on, it functions properly. What should they buy to protect their computer during future lightning storms?

Is magnetic a physical or chemical property

How to convert 120 barrels to quarts?

Which part of the atom takes up the most space

At 1250 mmHg and 750C, the volume of a sample of ammonia gas is 6.8 L. What volume would the ammonia occupy at STP?

What physical state of matter is associated with the strongest attractive forces between particles (molecules, ions, or atoms) ?

Why is crushed ice used for snow cones

A gas mixture contains CO, Ar and H2. What is the total pressure of the mixture, if the mole fraction of H2 is 0.35 and the pressure of H2 is 0.58 atm?