•EXAM #2 THIS FRIDAY, 10/16

•CHAPTER 4 OWL ASSIGNMENTS (& FIRST CHAPTER 6 ASSIGNMENT) DUE 10/15

Announcements

Types of Reactions

Combination(Synthesis)

Decomposition Displacement

# reactants > # products # reactants < # products # reactants = # products(usually)

SpontaneousHeatElectrolysisCatalyst

Single

Double: Precipitation

Double:Acid-BaseGas forming

Redox

Combination and Decomposition Reactions

Thermal decomposition of metal carbonates:

MCO3(s) MO(s) + CO2(g)

Combination of two elements to form a compound

Zn + S ZnS

Organic Reactions

Combustion ReactionsReaction with oxygen gas to form CO2 and H2O.

C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(l)

Substitution ReactionsExchange of one atom or molecular fragment.

Organic Reactions

Addition ReactionsAddition of two molecules together.

Elimination ReactionsEjection of a small molecule from a larger one.

Organic Reactions

Isomerization (Rearrangement) ReactionsChange of shape of a molecule without gain or loss of any atoms.

What type of reaction is this?

1 2 3 4 5

14%12% 11%

23%

40%1. Addition2. Combustion3. Elimination4. Isomerization5. Substitution

What type of reaction is this?

1 2 3 4 5

7%4%

7%

80%

2%

1. Addition2. Combustion3. Elimination4. Isomerization5. Substitution

What type of reaction is this?

1 2 3 4 5

76%

9% 11%

0%4%

1. Addition2. Combustion3. Elimination4. Isomerization5. Substitution

ELECTROMAGNETIC RADIATIONAND

ELECTRONIC STRUCTURE

Chapter 6

Anatomy of a Wave

The Electromagnetic Spectrum

UV-B Light and DNA Damage