Solutions to p 11

1.         a.         H: 2

                        S(sulfur): 2

            b.         Na(sodium): 2

                        C: 1

                        O : 3

            c.         Ca: 1

                        Cl: 2

            d.         C: 4

                        H: 10

                        O: 1

            e.         N: 1

                        F: 3

            f.          Al: 2

                        S: 3 X 1 = 3

                        O: 3 X 4 = 12

            g.         Mg: 1

                        Cl: 2 X 1 = 2

                        O: 2 X 3 = 6.

            h.         N: 2 X 1 = 2

                        H: 2 X 4 = 8

                        S: 1

            i.          C: 6

                        H: 5 + 1 = 6

                        O: 1

 

2.        

3.         a.

            b.         No the atoms are not bonded.

4.         a.         12

            b.         O: 6

                        H: 6 ( assuming the blank ones are hydrogen)

            c.         3

            d.         H₂O₂

5.         a.         H₂SO₄              b.         N₂