Study Guide for Final

Final Exam Study Guide

Chapter 1:

 Understand the difference between a theory and a law

Understand the difference between a qualitative observation and a quantitative observation.

Chapter 2:

Be able to explain the difference between elements, compounds and atoms.

Know what a molecule is.

Understand physical and chemical properties and be able to identify both types.

Be able to identify a physical versus a chemical change based on observations.

Chapter 3:

Be able to identify elements on the periodic table and explain what the atomic number, chemical symbol, atomic mass represent.

Understand what is an isotope and how isotopes differ.

 Know the regions of the periodic table and where to find different types of elements.

  Be able to explain what is a diatomic molecule.

Know what are cation and anion. Be able to identify what ions elements form based on their location on the periodic table.

  Be able to write formulas for ionic compounds by using their charges.

 Explain the number of protons, electrons and neutrons and atom has based on information from periodic table.

 Be able to identify group names of the periodic table (noble, alkalis, etc) and why their valence electrons determine their position.

  Explain what is a valence electron and its importance.

 

Chapter 4:

Know how to write names and formulas for Type I, Type II and Type III compounds.

Know how to identify polyatomic ions and use this knowledge to write names and formulas when these ions form compounds.

Chapter 5:

 Know how to write scientific notation for both large and small numbers.

  Know how to write scientific notation for both large and small numbers.

  Know how to calculate the density of an object using the formula D= M/V.

 

Chapter 6:

Be able to calculate the number of objects giving the total mass and the individual mass of an object.

Calculate the number of atoms, moles, amu, molar mass, and number of atoms using a set of steps starting from what you know to what you want to find out.

Understand what is a mole and what it represents.

 Calculate the percent composition of an element in a compound.

Chapter 7:

 Be able to balance equations using counting technique to balance both the reactants and the products in the reaction.

Be able to create a chemical equation by writing chemical formulas for compounds using ion charges for elements and polyatomic ions.

Identify the evidence for chemical reactions.

Chapter 11:

Understand the electromagnetic spectrum and its parts (which has more energy and less energy based on wavelength).

 Know what happens when an atom becomes excited by a photon.

 Know what an electron orbital is and what defines it.

  Be able to identify which elements have more ionization energy.

  Be able to identify elements by their electron configuration (1s, 2s).

 

Chapter 12:

Be able to explain the difference between an ionic and covalent bond.

 Be able to identify what elements are most electronegative.

 Be able to draw Lewis structures and identify what shape it will have.

Be able to write formulas for ionic compounds.