What is the perimeter of a polygon 8cm 6cm, 4cm, 6cm

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms

Answer immediately when two or more atoms of the same element are in a chemical bond, the substance is called a(n) a. compound b. molecule c. nucleus