CHEM 1006 EXAM STUDY REVISION NOTES
Weekly Key Objectives
Week 1
1) Understand how to convert between decimal and scientific notation (and vice versa)
2) Understand concept of rounding and significant figures
3) Understand differences between chemical and physical changes
4) Understand at a basic level the differences between solids, liquids and gases
5) Know how to determine the number of protons/neutrons/electrons in a given
element or
ion
6) Understand the concept of an isotope and why atomic masses for most elements are
not
whole numbers
7) Understand how to predict the charges of main group monatomic ions (in the context
of
the number of electrons of noble gases)
8) Given a table of polyatomic ions (see below) and/or using the periodic table, be able
to
write the corresponding ionic formulae of given molecules.
9) Understand the difference between a molecular and structural formula
10) Know how to draw simple structural formulae
Week 2
1) Understand how to apply the solubility rules in the context of precipitation reactions
2) Be able to write balanced equations, total ionic equations and net ionic equations for
precipitation reactions
3) Understand what a redox reaction is, how to identify a redox reaction and what
constitutes oxidation and reduction
4) Understand how to apply the rules of oxidation numbers for the identification of the
oxidized/reduced species in a given reaction
5) Know how to calculate the molar mass of any given compound
6) Understand how to manipulate the mol equation (n=m/MW) and interconvert
between
numbers of mols (n), molecular weight (MW) and mass (m).
7) Understand what Avogadro’s number is and be able to interconvert between no of
mols
and Avogadro’s number (and vice versa)
1
Weekly Key Objectives
Week 1
1) Understand how to convert between decimal and scientific notation (and vice versa)
2) Understand concept of rounding and significant figures
3) Understand differences between chemical and physical changes
4) Understand at a basic level the differences between solids, liquids and gases
5) Know how to determine the number of protons/neutrons/electrons in a given
element or
ion
6) Understand the concept of an isotope and why atomic masses for most elements are
not
whole numbers
7) Understand how to predict the charges of main group monatomic ions (in the context
of
the number of electrons of noble gases)
8) Given a table of polyatomic ions (see below) and/or using the periodic table, be able
to
write the corresponding ionic formulae of given molecules.
9) Understand the difference between a molecular and structural formula
10) Know how to draw simple structural formulae
Week 2
1) Understand how to apply the solubility rules in the context of precipitation reactions
2) Be able to write balanced equations, total ionic equations and net ionic equations for
precipitation reactions
3) Understand what a redox reaction is, how to identify a redox reaction and what
constitutes oxidation and reduction
4) Understand how to apply the rules of oxidation numbers for the identification of the
oxidized/reduced species in a given reaction
5) Know how to calculate the molar mass of any given compound
6) Understand how to manipulate the mol equation (n=m/MW) and interconvert
between
numbers of mols (n), molecular weight (MW) and mass (m).
7) Understand what Avogadro’s number is and be able to interconvert between no of
mols
and Avogadro’s number (and vice versa)
1
