Chapter 3 : Molecules, Compounds and
Hydrogen, Oxygen and Water
Chemical Equations
elements combine together to make an almost limitless
number of compounds
Outline
the properties of the compound are totally different from
1) Chemical Bonds
the constituent elements
2) Chemical Formulas and Molecular Models
3) Ionic Compounds
4) Molecular Compounds
5) Formula Mass
6) Composition of Compounds
7) Writing and Balancing Chemical Equations
Chemical Bonds
Chemical Bonds
Types of Chemical Bonds
two general types of bonding between atoms found in
compounds,
ionic
and
covalent
compounds are made of atoms held together by
chemical bonds
ionic bonds
result when electrons have been transferred
between atoms, resulting in oppositely charged ions
that attract each other
covalent bonds
result when two atoms share some of
their electrons.
Chemical Bonds
Chemical Bonds
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