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Chapter 8 Homework SOLUTION
1. The reaction bet ween hydrazine, N2H4, and hy drogen peroxide, H2O2, has been used as a
rocket fuel, given as the following balanced equation:
N2H4 + 7 H2O2 2 HNO3 + 8 H2O
According to this equat
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Chapter 6 Homework SOLUTION
Follow the homework guidelines given in the syllabus! Show your work, use units and sig figs, where
appropriate.
1. How many molecules are in 10.35 mol of sodium phos phate?
6.022142 x 10 23 molecul
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Chapter 4 Homework SOLUTION
Follow the homework guidelines given in the syllabus! Show your work, use units and sig figs, where
appropriate.
1. Label the following elements as metals, nonmetals or metalloids.
a) Germanium
Meta
DRI LLS: Fill in each blank in the table below with the for mula of the neutral c ompound formed when
the cation at the left is combined with the anion at the top.
OH-
F-
CO3-2
NO3-
O-2
N-3
H+
H2O
HF
H2CO3
HNO3
H2O
H3N
Li+
LiOH
LiF
Li2CO3
LiNO3
Li2O
Li3N
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Homework 1 SOLUTION
Due Tuesday, July 17th.
Please put your ans wers in an e-mail and send it to me at nfattaleh@clark.edu. Please mail it from
whatev er e-mail address you check most often.
Please respond to the following que
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Chapter 5 Homework SOLUTION
Follow the homework guidelines given in the syllabus! Show your work, use units and sig figs, where
appropriate.
1. Give the molecular formula and formula weight for the following c ompounds.
a) Hy
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Chapter 3 Homework SOLUTION
Follow the homework guidelines given in the syllabus, and dont forget to use c orrect significant figures
and units.
1. Classify the following mat erials as an element, compound, homogenous mixture
Chemistry 100
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Chapter 2 Homework SOLUTION
Follow the homework guidelines given in the syllabus, and dont forget to use c orrect significant figures
and units.
1. How many signific ant figures do the following numbers have?
a) 92. 689
5 sig f
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CHEM 100 Final Exa m Review Sheet SOLUTI ON
This review sheet only covers material post exam 3 Li miting reagents and percent yield fro m Ch. 8 and the
Ch. 9 material, such as the ideas behind the Bohr model , the rules govern
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Name _
F07 Exam 2 Review
You may tear off the last page to use as scratch paper. Useful conversi on factor s are available
on the last page.
Probl em Solvi ng
Ans wer the following questions in the spaces prov ided. You must show your work
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Final Exam Review
Here is a collection of cumulative problems, that cover several topics in one problem.
1. Boron and oxygen combine to give a binary compound.
a. Based on their positions on the periodic table, what are the ty
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CHEM 100 Exam 3 Review SOLUTI ON
1. Predicti ng Reactions. Predict the products of the reaction described below. Please give the
complete molecular equation and net ionic equation to eac h reaction. Identify the reaction as a
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CHEM 100 Exam 3 Review SOLUTI ON Updated for Fall 2007
Review Pr oblems for a more c omplete review, redo homework and in-class problems as well!
You can also look for problems in bot h Exam 2 and Exam 3 from Summer 2007. Not
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CHEM 100 Exam 2 Review SOLUTI ON Updated for Fall 2007
Review Pr oblems for a more c omplete review, redo homework, the nomenclat ure practic e sheet and
in-class problems as well!
1. A new fictitious element is discovered on
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CHEM 100 Exam 1 Review
Review Pr oblems
1. Always searching for a better cup of coffee, you decide to travel to the source and obtain coffee
beans from Costa Rica.
a) You take an empty carry-on suitcas e with you to hold the b
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Chapter 9 Homework SOLUTION
Follow the homework guidelines given in the syllabus! Show your work, use units and sig figs, where
appropriate.
1. Give the orbital diagram configuration (boxes and arrows) and the electronic confi
Chemis try 100
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Chapter 7 Homework SOLUTION
Follow the homework guidelines given in the syllabus! Show your work, use units and sig figs, where
appropriate.
1. Balanc e the following reactions. (phase labels omitted for clarity)
a. P4 + 6 H2