Christine Hachem 9/18 homework
Read 72-76 #1-5 page 76
a. Atom- smallest particle of an element that retains the chemical properties of that
b. electron- surrounds the nucleus and is negatively charged
c. nucleus- very small region loc
Christine Hachem and Ruqayah Mohammed
January 25, 2015
Chemistry Honors P3
Reactivity of Metals in Single Replacement Reactions
Objective: Determine the order of reactivity for Silver, Copper, Magnesium, and Zinc.
Background: In a single
Intermolecular Forces Lab
2. Using water molecules as an example, tell what the difference is between a covalent bond and
a hydrogen bond.
Covalent bonds: Are within the same water molecule and are the bonds between the
atoms. These exi
Pages 534- 537 notes
o No way to directly measure
o The amount of energy absorbed by a system as heat during a process at constant
o H= Hproducts-Hreactants
Enthalpy of reaction
o The quantity of energy transferred as heat during a che
Christine Hachem October 1, 2014
For this experiment, a special wire instead of a copper wire would be used to prevent a
chemical reaction with the copper. The copper could potentially cause a blue-green flame and the
experiment required a wire that would
Page 211 #37- 42
a. What are intermolecular forces?
The forces of attraction between molecules.
b. In general, how do these forces compare in strength with those in ionic and metallic
Vary in strength, but are usually weaker than bonds that
Christine Hachem October 6, 2014 page 125 29 38
a. What is meant by the highest occupied energy level in an atom?
The most energy that is absorbed with electrons.
b. What are inner-shell electrons?
Levels that have already filled with electrons, nea
Christine Hachem pages 142- 149 Practice Problems
1. Will we have to do this without looking?
2a. How do you do for all elements in Group 2?
1. Period 4
2. 5th energy l
March 3, 2015
Dehydration of Copper (II) Sulfate Pentahydrate Conclusion
The purpose of this lab was to verify the ratio in the hydrate of H2O: CuSO4 by
determining the percent water by mass contained in c
Christine Hachem pgs 97-103; 103 #1-6
1. What was the major shortcoming of Rutherfords model of the atom?
It was an improvement over previous models, but did not explain how the atoms negatively
charged electrons are distributed in the space surr
Christine Hachem October 2, 2014
a. Main energy levelsb. Quantum numbers- Specify the properties of atomic orbitals and the properties of
electrons in orbitals.
a. List the four quantum numbers
b. What general information about atomic
Objective: What are being tested are three different types of aluminum and comparing their
densities to one another. This is being completed to see if density changes when different types
of aluminum are measured. Hypot
Christine Hachem P2
1. Every time I eat food, chemical digestion occurs. It is a chemical change because food is
broken down into new substances to be used throughout the body.
2. I lit a firecracker on the fourth of July which is a chemi