A piece of silver is observed to be scratched bent and coated with tarnish. which is the chemical change? a)getting bent
b)none of the above
c)getting scratched
d)getting coated with tarnish

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.