PLEASE ANSWER

Which question would best identify a wave as being electromagnetic?

A. Does it travel using vibrating particles?
B. Does it travel through a vacuum?
C. Does it travel due to a disturbance?
D. Does it travel through matter?

What three natural resources are found in the great lakes region

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.

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope