Which of the following cannot be used to show diffusion? Select one:
a. A drop of food coloring added to water.
b. Moths attracted to a flame.
c. Students leaving school at the end of the day.
d. The spreading of the gases from a car's exhaust.

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

What was bohr’s contribution to the planetary model

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.