How many hydrogen atoms are in 105 g of water?
7.02 x 10^24 atoms
3.51 x 10^24 atoms
4.7 x 10^23 atoms
3.9 x 10^23 atoms

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

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.

How many moles in .5g of sodium bromide?