Notes for Chapter 2 – Day 2
Name:___________________________
Elements and Compounds – Lesson 2
Overview:
Your body is composed of elements and compounds. Everything we use is made of elements
and compounds. This lesson will insure we how compounds are made and the naming rules
for chemicals.
Lets look at an element and a compound.
Draw the element of Oxygen
Draw the Compound of Carbon dioxide
The Letters of Life:
Just like words are made up of letters, compounds are made up of elements.
Draw Water
Draw Baking Soda
1) What is an Element?
2) What is a Compound?
3) Why are Elements and Compounds still considered Pure Substances?
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Notes for Chapter 2 – Day 2
Name:___________________________
IUPAC:
What does IUPAC stand for?
Why is the Symbol “C” used for Carbon and not for Calcium?
Why is the symbol for lead “Pd” and not “Le”?
Name another element on the periodic table that its symbol doesn’t match the name of the
element.
Writing/Reading Chemical Formulas:
H2O(l)
H2 = ____________________
O = ____________________
(l) = ____________________
Compound Name
Common Use
Calcium carbonate
Chalkboard
chalk
Heavy-duty
cleaner
De-icing roads
Sodium phosphate
Magnesium chloride
Monosodium glutamate
(MSG)
Hydrogen peroxide
Glucose
Carbon dioxide
Freon-12
Chemical
Formula
CaCO3(s)
Number and Name of
Elements
Total Number
of Atoms
Na3PO4(s)
MgCl2(s)
Food seasoning
NaC5H8NO4(s)
Bleach and
disinfectant
Sugar
H2O2(l)
Fizz in pop, dry
ice
Refrigerator
coolant
CO2(g)
CH O
6
12
6(s)
CCl2F2(g)
Watch the Decomposition Reaction of Water. Answer questions 1-4 on pg. 33 on a separate
sheet of paper to hand in.
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