Differentiate scalars & vectors?

A scalar quantity is a one dimensional measurement of a quantity, like temperature, or mass. A vector has more than one number associated with it. A simple example is velocity. It has a magnitude, called speed, as well as a direction, like North or Southwest or 10 degrees west of North.

Scalar is distance and magnitude while Vector is distance with direction as well as displacement and velocity

There's nothing  on the list you provided to which that law applies.

Bis the answer, adding an indicator to a solution to test its acidity.