Rusting is a chemical change because it is two substances reacting together to make a new substance. It also has broken and rearranged compounds and usually doesn't simply change back to normal easily or at all. Is that too much or is it good?
Answer:
(B) SECONDARY ALKYL HALIDE
Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.