Alkanes are hydrocarbons that contain
a.
single covalent bonds only.
c.
carbon and oxygen only.
b.
single or double covalent bonds.
d.
carbon, hydrogen, and oxygen.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Which compound contain an iron with a 3+ charge

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.