Wednesday May 25, 2011 (Review for Semester Final) (Day 3)
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Transcript of Wednesday May 25, 2011 (Review for Semester Final) (Day 3)
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WednesdayMay 25, 2011
(Review for Semester Final)(Day 3)
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Bell RingerWednesday, 5/25/11
No Bell Ringer Today.
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Announcements
Please check your yearly average in this class.
If you are below 70 for the year, please come and see me
ASAP!
There are only two more grades remaining!
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Six-Week’s Assignment List Date Issued Date Due
Quiz – TAKS Concepts 4/22 4/22
Video Worksheet – Carbon: The Element of Life 5/2 5/2
WS – Organic Chemistry 5/3 5/9
Quiz – Intro to Organic Chemistry and Alkanes 5/4 5/4
Lab – Molecular Models 5/6 5/6
Packet – Important EOC Concepts 5/10 5/20
Test 10 5/10 5/10
Quiz – Hydrocarbons 5/13 5/13
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Review for Final Exam
(Day 3)
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31What is occurring in the equation
below?
HCl æ H+ + Cl-
HCl is being ionized by
water.
H2O
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32In the equation below, Compound
X is
Compound X æ H+ + an anion-an
acid.
H2
O
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33What is true of an acid in
regards to ion concentration?
[H+] > [OH-]
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34List three common household items that can
be classified as acids.Battery acid
Lemon juice
Vinegar
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35 Name the following
acid: H2SO4 sulfuric acid
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36 When the indicator
bromthymol blue is added to HCl, it changes color from blue to yellow. When it is added to NaOH it remains blue. What
does this indicate?Bromthymol blue is an acid-
only indicator.
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37A student has a solution that tastes bitter, feels slippery, and is a weak electrolyte.
What is most likely the identity of her solution?
a base
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38Which ion, H+ or OH-, is present in greater number in vinegar at a pH of 5, and how many more ions of this
type are there than the other type? H+ is present in greater number.
There are 100x more H + ions than OH- ions at a pH of 5.
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39Which of the following statements
is the most accurate? Soap and shampoo are acidic, while oranges and lemons are basic.
The foods we eat can contain many different types of acids, whereas household cleaning supplies can contain bases.
Acids are always safe to taste as long as you don’t taste too much.
All bases are harmful and should never be touched.
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40List three
environmental problems caused by
acid rain.the deterioration of buildings and
statues.
the killing of plants and animals
in a forest.
the killing of plants and animals
in rivers and streams.
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41Can you make an element
(like gold) from other elements? Explain.
Yes, you can make gold atoms from other atoms, but only in vary small
amounts.
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42Name a pair of elements that could undergo nuclear
fusion to produce gold.Any elements
that have atomic
numbers that total 79, like iridium and
helium
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43List two examples each of nuclear
fission and nuclear fusion.
Fissiona submarine using a nuclear reactor
for powerthe explosion of an atomic-bomb
Fusionthe Sun
generating heat and light
the explosion of a hydrogen-bomb
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44What parts of the atom participate
directly in a nuclear reaction?
protons and neutrons
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45Which one of the following is not a result of a nuclear
reaction? the generation of x-rays for cancer treatment
the Sun generating radiation hydrogen gas and oxygen gas
combining to make water radioactivity produced from the
detonation of an atom bomb