How many formula units present in 0.354 moles of copper (II) chloride , CuCl2? 2.13x10^23 formula units
2.13x10^24 formula units
5.88x10-25 formula units
5.88x10^22 formula units

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 statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided