How does chemical energy hold molecules together?

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which material burns faster? metal aluminum