Match the each type of chemical reaction with the chemical formula model that represents it. In the models, assume that A, B, C, and D are symbols for unknown elements, and 0 represents oxygen.
combustion o
A+B - AB
decomposition
AB - A+B
double displacement O
O AB+C - AC+B
single displacement o
AB + CD - AC + BD

Which of the following is not am example of a polymer? protein nylon kevlar concreta

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc

How do cracks affect the rate of weathering?