1. CHEM 106 Physical & Chemical Properties ____________
Atoms/ Compounds and The Periodic Table

2. Chemistry & Matter Organization of matter
Physical vs. Chemical Properties
Physical States: Solid (s), Liquid (l), Gas (g)
Homogeneous vs. Heterogeneous Mixtures

3. Organization of Matter
Classifying & Separating Matter
Mixtures  Pure Substances

4. Physical States of Matter

5. Physical States of Water

6. Chemistry & Matter Properties & Physical States
Physical vs. Chemical Properties
Solid (s)  Liquid (l)  Gas (g)
Homogeneous vs. Heterogeneous Mixtures
Extensive vs. Intensive Properties
Varies with amount (extensive) or does not vary with amount (intensive)
Heat of chemical reaction is extensive (Chemical Property), density is intensive (Physical Property)

7. Chemistry & Matter Organization of atoms & molecules:
atoms/elements  molecules/compounds
Physical vs. Chemical Properties
Chemical Reactions: atoms combine to form molecules, which chemically react further.

8. Chemical Visualization: Atoms & Molecules
Atomic Force Microscopy / Molecular Modeling
Experimental / Mathematical
Figure: 01-05a-d
Solid (s)  Liquid (l)  Gas (g)

9. Organization of Matter
Molecules
Atoms / Elements & Compounds/ Molecules

10. CHEMISTRY of Atoms The Periodic Table
Mendeleev’s Table
Mural at St. Petersburg University, Russia

11. Los Alamos National Lab
Periodic Table
Los Alamos National Lab

12. Figure: 01-06

13. Composition of the Earth’s Atmosphere
Figure: 01-06

14. Composition of the Earth’s Atmosphere
Today:
Figure: 01-06

15. Elements & Compounds
Element: A substance that cannot be broken into simpler substances by chemical means, eg. Fe, Iron or S8 Sulfur
FeS
Compound: A substance with a constant composition that can be broken down into elements only by chemical processes,eg. FeS, Iron (II) sulfide

16. ~ 500 new molecules are currently added / hr
Chemistry & Matter
How many different chemicals (atoms + molecules) do you think have been reported in the scientific literature?
A) 100,000
B) 1,000,000
C) 10,000,000
D) 100,000,000
E) 1,000,000,000
CAS Registry : ~12,000 in 1907
~ 500 new molecules are currently added / hr

17. Chemistry & Matter
How many different chemicals (atoms + molecules) do you think have been reported in the scientific literature?
A) 100,000
B) 1,000,000
C) 10,000,000
D) 100,000,000 ***
E) 1,000,000,000
CAS Registry : ~12,000 in 1907; ~ 75 million in 2013; 100,000,000 reached in July 2015 ~ 500 new molecules are currently added / hr

18. Observations of Physical & Chemical Properties

19. A) I and II B) I and III C) II and III D) I, II and III
QUESTION
Extensive properties of a pure substance depend on sample size whereas intensive properties are characteristic of that substance. Which of these properties are intensive?
I) Color
II) Mass
III) Density
A) I and II B) I and III C) II and III D) I, II and III

20. A) I and II B) I and III C) II and III D) I, II and III
Answer
Extensive properties of a pure substance depend on sample size whereas intensive properties are characteristic of that substance. Which of these properties are intensive?
I) Color
II) Mass
III) Density
A) I and II B) I and III C) II and III D) I, II and III
Correct Answer: B

21. Using Physical & Chemical Properties: Distinguishing a Compound & a Mixture
FeS

22. Which of these are chemical properties of matter?
QUESTION
Which of these are chemical properties of matter?
I) Rust/Corrosion
II) Density
III) Flammability
IV) Melting point (Temperature: Solid  Liquid)
A) I and II B) I and III
C) II and IV D) III and IV

23. Which of these are chemical properties of matter?
Answer
Which of these are chemical properties of matter?
I) Rust/Corrosion
II) Density
III) Flammability
IV) Melting point (Temperature: Solid  Liquid)
A) I and II B) I and III
C) II and IV D) III and IV
Correct Answer: B