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Chemical Formulas
STUDENT RESOURCE 2.4
ACTIVITY SHEET
Copyright © Houghton Mifflin Company. All Rights Reserved.
In the last column, write the number of each type of atom in the
chemical formula. The first compound is done as an example.
Compound
Use
Chemical
Formula
Type and Number
of Atoms
Water
Basic nutrient
H2O
2 H atoms
1 O atom
Table sugar
Sweetener
C12H22O11
Baking soda
Cooking
NaHCO3
Phosphoric acid
Soft drinks
H3PO4
Caffeine
Found in some
beverages and
foods
C8H10N4O2
Aspirin
Pain reliever
CH3CO2C6H4COOH
CHEMISTRY • SECTION 2 ATOMS, MOLECULES, AND COMPOUNDS
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