1. Periodic Properties of the Elements Equations associated with periodic trends © 2009, Prentice-Hall, Inc.

2. Periodic Properties of the Elements Equations Metal + acid  salt + hydrogen gas Active metal (Grps I & 2) + water  metal hydroxide + hydrogen gas Metal oxide + acid  salt + water Nonmetal oxide + base  salt + water Metal oxide + water  base Metal + nonmetal  salt Nonmetal oxide + water  acid © 2009, Prentice-Hall, Inc.

3. Periodic Properties of the Elements Equations Metal + acid  salt + hydrogen gas Zn + HCl (aq)  ZnCl 2(aq) + H 2(g) Don’t forget to balance… © 2009, Prentice-Hall, Inc.

4. Periodic Properties of the Elements Equations Active metal (Grps I & 2) + water  metal hydroxide + hydrogen gas Na (s) + H 2 O (l)  NaOH (aq) + H 2(g) Don’t forget to balance… © 2009, Prentice-Hall, Inc.

5. Periodic Properties of the Elements Equations Metal oxide + acid  salt + water Sc 2 O 3(s) + HNO 3(aq)  Sc(NO 3 ) 3(aq) + H 2 O (l) Let’s balance this one together © 2009, Prentice-Hall, Inc.

6. Periodic Properties of the Elements Equations Nonmetal oxide + base  salt + water CO 2(g) + NaOH (aq)  Na 2 CO 3(aq) + H 2 O (l) Balance… © 2009, Prentice-Hall, Inc.

7. Periodic Properties of the Elements Equations Metal oxide + water  base BaO (s) + H 2 O (l)  Ba(OH) 2(aq) Balance… © 2009, Prentice-Hall, Inc.

8. Periodic Properties of the Elements Equations Metal + nonmetal  salt Zn (s) + Cl 2(g)  ZnCl 2(s) © 2009, Prentice-Hall, Inc.

9. Periodic Properties of the Elements Equations Nonmetal oxide + water  acid CO 2(g) + H 2 O (l)  H 2 CO 3(aq) © 2009, Prentice-Hall, Inc.

10. Periodic Properties of the Elements Your turn 1.A strip of magnesium metal is heated with nitrogen gas. 2.A strip of iron is dropped into a solution of sulfuric acid. 3.Phosphorus(V) oxide is sprinkled over distilled water. 4.Magnesium oxide is stirred into distilled water. 5.A small piece of calcium is dropped into distilled water. 6.Sulfur dioxide is bubbled through a solution of potassium hydroxide. 7.Magnesium oxide is bubbled through a solution of hydrobromic acid. © 2009, Prentice-Hall, Inc.

11. Periodic Properties of the Elements Your turn 1.A strip of magnesium metal is heated with nitrogen gas. 3 Mg + N 2  Mg 3 N 2 1.A strip of iron is dropped into a solution of sulfuric acid. 2.Phosphorus(V) oxide is sprinkled over distilled water. 3.Magnesium oxide is stirred into distilled water. 4.A small piece of calcium is dropped into distilled water. 5.Sulfur dioxide is bubbled through a solution of potassium hydroxide. 6.Magnesium oxide is bubbled through a solution of hydrobromic acid. © 2009, Prentice-Hall, Inc.

12. Periodic Properties of the Elements Your turn 1.A strip of magnesium metal is heated with nitrogen gas. 2.A strip of iron is dropped into a solution of sulfuric acid. 3.Phosphorus(V) oxide is sprinkled over distilled water. 4.Magnesium oxide is stirred into distilled water. 5.A small piece of calcium is dropped into distilled water. 6.Sulfur dioxide is bubbled through a solution of potassium hydroxide. 7.Magnesium oxide is bubbled through a solution of hydrobromic acid. © 2009, Prentice-Hall, Inc.