The kinds of atoms in the substance and their arrangements
The correct answer should be <span>A. If you see a wear bar across the width of the tread, it's time to change the tire
This is an incorrect sentence because you should change a tire before you see the wear bar. At the time you see the bar, you should've already changed it. </span>
Fluorine has nine protons
the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.
Answer: Heat waves? I’m not %100 sure
