The Nature of Matter, Conservation of Matter, Thermochemistry,

1. All matter is Made of the same
Reoccurring Elements called Atoms

2. All matter is Made of the same
Reoccurring Elements called Atoms

3. Each Element has its own Unique
Physical and Chemical Properties

4. Matter is made of one or More of these
Elements (atoms) Combined Together

5. Two or More Types of Elements
Chemically Bonded Together is
Called a Compound.

6. Compounds have Properties that are
Different from their Individual Elements

7. Mixtures are Combinations of
matter not chemically combined
Heterogeneous (many different_)
Homogeneous (all the same)
Separating
Colloids
Suspensions
Solutions

8. Physical Properties of Matter
Density
Melting point
Freezing point
Texture
Color
Flexibility

9. Chemical Properties of Matter
Cannot be observed without a chemical reaction
Change in: Flammability, Color, Temperature
Ability to Chemically React
Forms new substances with new properties

10. Chemical Reactions
In a chemical reaction the molecules are
rearranged into different combinations
of atoms.

11. Ingredients of Reactions
Reactants and Products...

12. Universal Law of
Conservation of Matter...
In a Chemical Reaction Matter is neither created or
destroyed
The Number and type of Atoms, and hence the mass,
remains the Same
But the Physical and Chemical Properties May change

13. Thermochemistry...
A Chemical Reaction will be either
Exothermic (the reactants have more
energy than the products; heat is given
off) or endothermic (the reactants have
less energy than the products; heat is
absorbed)

14. Identify the Reaction...

15. Identify the Reaction...