2. AIM: What is a compound What is a compound?

3. AIM: What is a compound Identify exactly how atoms combine together to form compounds

4. AIM: What is a compoundCompound Chemical Change Physical Change Compound Chemical Change Physical Change

5. AIM: What is a compound Demonstration 1.Mr. Z will heat some sugar in a test tube 2.Sugar is C 6 H 12 0 6 3.What do you see happens 4.First the sugar turns into a liquid 5.And then just black. 6.The black is solid carbon “C’ 7.The O and H were released as a gas

6. AIM: What is a compound Chemical or physical Change ? Not sure Try putting the black residue on your breakfast cereal !

7. AIM: What is a compound Compund Is a new substance produced when two or more elements chemically combine The new compound will have physical and chemical properties that will be different from the original elements

8. AIM: What is a compound Example Pure Chlorine will kill you (Cl) Pure Chlorine is a gas at room temperature Who know what Chlorine is. Sodium (Na) also by itself is harmful Chemically combine the two and what do you get ?

9. AIM: What is a compound Example Sodium (Na) also by itself is harmful At room temperature, sodium will explode into a fire Chemically combine Chlorine and Sodium and what do you get

10. AIM: What is a compound

11. AIM: What is a compound

12. AIM: What is a compound Unlike Chlorine, salt wont kill you. Unlike sodium, it will not burst into flames Salt has its own unique properties Salt is a new compound

13. AIM: What is a compound Element #1 Element #2 New Compound New Chemical & Physical Properties

14. AIM: What is a compound Last Example Chemical change was two or more elements forming a new compound

15. AIM: What is a compound Element #1 Element #2 Compound Chemical & Physical Properties

16. AIM: What is a compound Last Example Chemical change was separating CHEMICALLY an existing compound into its original SEPARATE elements

17. AIM: What is a compound Question Can two compounds combine chemically to produce a NEW compound YES