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2024 CCRP Exam Prep| 30 PAGES(300 QUESTIONS)| WITH COMPLETE SOLUTIONS

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Who was tried in the Nuremburg Military Tribunals and why? Correct Answer: Doctors who committed war crimes against humanity including medical experiments on concentration camp inmates and other human subjects without consent What was the outcome of the Nuremburg Military Tribunals? Correct Answ...

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  • March 25, 2024
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Chem 103 Module 1 to 6 Exam answers Portage learning
LATEST UPDATED APRIL 2024




Chem 103 Module 1 Exams Questions and Answer
12 Answered Questions
MODULE 1 EXAM
Question 1
Click this link to access the Periodic Table. This may be helpful throughout
the exam.
1. Convert 845.3 to exponential form and explain your answer.
2. Convert 3.21 x -5
o ordin y form and explain your answer.


Convert 845.3 = than 1 = positive exponent, move decimal 2 places
= .453 x 1 2
Convert 3.21 x 10-5 = negative exponent = smaller than 1, move decimal 5
places = 0.0000321

Question 2
Click this link to access the Periodic Table. This may be helpful throughout
the exam.


Using the following information, do the conversions shown below, showing all
work:
1 ft = 12 inches 1 = 16 oz gallon = 4 quarts
1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints
kilo (= 1000) milli (= 1/1000) centi (=
1/100) deci (= 1/10)




0 larger
0 t ar
pound 1
1

,1. 24.6 grams = ? kg

2. 6.3 ft = ? inches


1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg
2. 6.3 ft x 12 in / 1 ft = 75.6 inches

please always use the correct units in your final answer

Question 3

,Click this link to access the Periodic Table. This may be helpful throughout
the exam.


Do the conversions shown below, showing all work:
1. 28oC = ? oK
2. 158oF = ? oC
3. 343oK = ? oF

1. 28oC + 273 = 301 oK o
C → oK (make larger)
+273
2. 158oF - 32 ÷ 1.8 = 70 oC o
F → oC (make smaller)
-32 ÷1.8
3. 343oK - 273 = 70 oC x 1.8 + 32 = 158 oF o
K → oC → oF

Question 4
Click this link to access the Periodic Table. This may be helpful throughout
the exam.


Be sure to show the correct number of significant figures in each calculation.


1. Show the calculation of the mass of a 18.6 ml sample of freon with
density of 1.49 g/ml


2. Show the calculation of the density of crude oil if 26.3 g occupies 30.5
ml.

1. M = D x V = 1.49 x 18.6 = 27.7 g
2. D = M / V = 26..5 = 0.862 g/ml


Question 5
Click this link to access the Periodic Table. This may be helpful throughout
the exam.


1. 3.0600 contains ? significant figures.
2. 0.0151 contains ? significant figures.

, 3. 3.0600 ÷ 0.0151 = ? (give answer to correct number of significant
figures)

1. 3.0600 contains 5 significant figures.
2. 0.0151 contains 3 significant figures.
3. 3.0600 ÷ 0.0151 = 202.649 = 203 (to 3 significant figures for 0.0151)


Question 6
Click this link to access the Periodic Table. This may be helpful throughout
the exam.
Classify each of the following as an element, compound, solution or
heterogeneous mixture and explain your answer.
1. Coca cola
2. Calcium
3. Chili


1. Coca cola - is not on periodic table (not element) - no element names
(not compound)
appears to be one substance = Solution

2. Calcium - is on periodic table = Element

3. Chili - is not on periodic table (not element) - no element names (not
compound)
appears as more than one substance (meat, beans,
sauce) = Hetero Mix

Question 7
Click this link to access the Periodic Table. This may be helpful throughout
the exam.


Classify each of the following as a chemical change or a physical change


1. Charcoal burns
2. Mixing cake batter with water

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