2nd Quarter Review guide

NAME: ______pd : ______

Atomic Structure:

  1. Define Mass Number:
  1. Define Atomic Mass:
  1. How do you calculate number of Protons?
  1. How do you calculate number of Neutrons?
  1. Does a + (positive) charge indicate that an atom as lost or gained electrons?
  1. Fill in the table:

Symbol / Mass
Number / Atomic
Mass / Atomic Number / # of Protons / # of Neutrons / # of electrons / Charge or OxidationState / Anion or Cation
39K+1
13N -3

More practice with atomic structure:

Valence Electrons:

  1. Are Principle Energy Levels Rows or Columns?
  1. What is another word for “Common Oxidation State”?
  1. What two sublevels (think electron configurations) represent valence electrons?
  1. Why do we skip over columns 3-12?

Fill in the table

Element / Lewis Dot Diagram / # Principle Energy Levels / # of Valence Electrons / Want to lose or gain electrons? / Common Oxidation State
Aluminum
Hydrogen
Bromine

Chemical Formulas and Names:

  1. How do you determine if a compound is ionic?
  1. How do you determine if a compound is covalent?
  1. When naming compounds when do you….
  1. use prefixes
  1. use roman numerals
  1. end a name with “ate” or “ite”
  1. What are the 5 polyatomic ions that you need to memorize?

Ionic Compounds

Name / Metal ion / Nonmetal ion / Chemical formula
cesium oxide / Cs+1 / O-2 / Cs2O
iron (II) bromide
Al2(SO4)3
Cu+1 / N-3
boron hydroxide
SrO

Covalent Compounds

Compound / Number/ Prefix 1 / Number/ Prefix 2 / Name
diphosphorus pentoxide
P4S3
carbon tetrafluoride
SeF6

More Naming Practice:

Electron Configurations:

  1. Draw examples that are correct and incorrect and describes the Pauli Exclusion Principle (PEP) rule.
  1. Draw examples that are correct and incorrect that describes the Hund’s (the bus) rule.
  1. Draw examples that are correct and incorrect that describes the Aufbau principle. (Building Up)
  1. List all of the noble gasses:
  1. Write the entire Electron Config and the Nobel Gas Method for the following:
  2. Nickel
  1. Phosphorus
  1. Sodium
  1. Na+1

More practice with Electron Configurations:

Moles:

  1. How do you calculate Molar Mass? (Mention when you add, and when you multiply). (Use Al2O3 as an example.)
  1. When faced with parentheses, what do you have to do? [Use (PO4)2 as an example]
  1. Calculate the molar mass of the following compounds:

MgCl2 Al2(SO4)3

Use this diagram to answer the following:

  1. When given grams and converting to moles, what goes on in space A of the t-chart?
  1. When given grams and converting to moles, what goes in space C of the t-chart?
  1. When given moles and converting to grams, what goes in space C of the t-chart?
  1. When do you use molar mass and when do you use 6.02 x 1023?
  1. Convert the following grams into moles:

10 grams of water = ______moles 25 grams of NaCl = ______moles

  1. Convert the following moles into grams:

3 moles of water = ______grams 0.25 moles of CaCl2 = ______grams

  1. Convert the following molecules into moles:

6.02 x 10 23 molecules = ______moles 1.806 x 10 23 molecules = ______moles

  1. Convert the following moles into molecules

2 moles = ______molecules 4.5 moles = ______molecules

More Mole Practice:

Balancing Equations:

Balance the equations

  1. 1. ____Al2O3 ___Al + ____O2
  1. ____ H2 + ____N2 ___NH3
  1. ____ NaCl + ____ F2____ NaF + ____ Cl2
  1. ___ Pb(OH)2 + ____ HCl____ H2O + ____ PbCl2
  1. ____ C8H18 + ____ O2____ CO2 + ____ H2O

More Balancing Practice:

  1. Determine the mole ratios of the following using the equations you just balanced
  2. From #31 aluminum : oxygen
  1. From #33 fluorine : chlorine
  1. From #34 How many moles of hydrochloric acid (HCl) are required to produce 3 moles of water (H2O)?

More Mole to Mole Ratio Practice:

Heat:

  1. What is the equation used for a phase change?
  1. What is the equation used for a temperature change?
  1. A 4.50 g ice cube melts at 0.0C. Is this a phase change or temperature change?
  1. Draw a phase diagram to represent a 35C cup of water converting into steam at 112C.

More Heat Practice Problems: (These are challenging!)

Vocab:

For each pair of words write the definition, and then list one similarity, and one difference between them.

2nd Quarter Review guide

  1. Anion and Cation
  1. Endothermic and Exothermic
  1. Oxidation and Reduction
  2. Atomic mass and Mass number
  1. Heat of Fusion and Heat of Vaporization
  1. Phase Change and Temperature Change