It is a physical change when cream mixes with
coffee, it changes the color of the coffee. When you add more or less cream there
is a color change depending on the consistency of cream. The
properties are not changes and a no new compound is formed as in chemical
change with a reaction of two compounds, a new compound is formed with
different properties. So it is a physical change.
Plate tectonics are the broken plates of earth that move around and form the different plate boundaries
Answer:
mol times or devided by molar volume
The maximum number of covalent bonds formed by a single carbon atom is 4