Warm Up (p29-30)
Sesame Street
1. Cookware
Fiberglass Insulation
Wiring
Aluminum
2. Nickel
Zinc
Calcium
Gold
You need 3-4 color pencils today
Homework: vocab 6 images
finish Reading & Creating Chem Formula w/s
finish lesson summary
Table of Contents
Date
Session
#
12/1-2
11
12/5-6
12/7-8
12
13
Activity
Page
#
Periodic Table crossword and review
33
Bohr Model w/s
34
Chapter 1D Test
35
Chemical Compound Notes
36
Reading and Creating Chemical Formulas
37
Compound Diagrams….(subscripts)
38
..multiple molecules…..(coefficients)
39
Lesson Summary
40
Elements to Compounds
NCSCOS 4.02
Big Picture
• Elements are pure substances with only ONE type of
atom.
• Most matter is a combination of elements
Atoms  elements  molecules  compounds
Vocab terms: compound, molecule, chemical
formula, subscript, ionic bond, covalent bond
Compounds p36
•
•
2 or more elements
Compounds usually have very
different properties than the elements
that compose them
3 important characteristics:
1. have a definite composition (ratio)
2. can be broken down into simpler
substances by chemical means
3. can be identified by their physical
properties
Compounds made of the same elements in a different
ratio with different bonds have different properties
H & O
• H2O vs H2O2
• Water: boils at 100C; 0C melting
universal solvent, pH=7
• Peroxide: 108C bp, -33C melting,
antimicrobial, pH 6.2
C, H, O
Isopropyl alcohol: C3H8O
82.5 bp
-88.5C
flammable,
Vinegar: CH3COOH
-2C mp
100.6C bp
Not flammable
Fill in the Chart
Compound
Na2SO4
Al2O3
CaSO4
C2H6
Fe
NH3
Symbol and #
of atoms
Na=2,S=1,O=4
Total # of
atoms
7
Fill in the Chart
Compound
Na2SO4
Al2O3
CaSO4
C2H6
Fe
NH3
Symbol and # Total # of
of atoms
atoms
Na=2,S=1,O=4
7
Al=2, O=3
5
Ca=1, S=1,O=4
6
C=2,H=6
8
Fe=1
1
N=1,H=3
4