Which of the following pairs of atoms exhibit an ionic bond?

h and s

fe and o

c and f

c and n

What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2