HEM1 Study guides, Class notes & Summaries
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![General Chemistry II (CHEM113) ACS Final 289 Questions with Verified Answers,100% CORRECT](/docpics/5592165/6665e8110515d_5592165_121_171.jpeg)
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General Chemistry II (CHEM113) ACS Final 289 Questions with Verified Answers,100% CORRECT
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General Chemistry II (CHEM113) ACS Final 289 Questions with Verified Answers 
 
The two states that are collectively known as the condensed states are _______. - CORRECT ANSWER solid and liquid 
 
The attractive forces that exist between all molecules and atoms, and are the forces that hold many solids and liquids together - CORRECT ANSWER intermolecular forces 
 
Intermolecular forces are only significant at _____. - CORRECT ANSWER short distances 
 
The state of a sample of matter is determine...
![CHEM133 Week 11 Lesson 5 Quiz](/docpics/3640009/652ea4a001d0d_3640009_121_171.jpeg)
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CHEM133 Week 11 Lesson 5 Quiz
- Exam (elaborations) • 17 pages • 2023
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6....
![Straighterline CHEM101 Final Exam Questions and Answers Rated A+](/docpics/4500119/65cc7b8d8a238_4500119_121_171.jpeg)
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Straighterline CHEM101 Final Exam Questions and Answers Rated A+
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Straighterline CHEM101 Final Exam 
Questions and Answers Rated A+ 
 
total number of neutrons and protons in an atom; # protons + # electrons Mass Number 
 
Most nonmetallic elements are found in which block of the periodic table? p 
 
Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... 
Positive matter is concentrated in the central core 
 
Plants use up copious amounts of which alkali metal, preventing most of it from being washed 
out to sea? Potassiu...
![PORTAGE LEARNING CHEM104 FINAL 2024](/docpics/4985749/6619352040306_4985749_121_171.jpeg)
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PORTAGE LEARNING CHEM104 FINAL 2024
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PORTAGE LEARNING CHEM104 FINAL 2024 
 
1.	What is made up of 2 or more atoms in a specific shape: 
-	Molecules 
2.	What has matter and distinct properties that doesn’t vary from sample to sample? 
-	Pure substances 
3.	Is granulated suger a pure substance? 
-	Yes 
4.	Is sea water a pure substance? 
-	No 
5.	What is composed of only one kind of atom? 
-	An element
![CHEM133 Week 6 Lesson 3 Quiz](/docpics/3639786/652e9e36c7a4b_3639786_121_171.jpeg)
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CHEM133 Week 6 Lesson 3 Quiz
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1.	Question: What is the wavelength of radiation that has a frequency of 5.39 × 1014 s–1? 
2.	Question: What is the wavelength of a photon of red light (nm) whose frequency is 4.64 x 1014 Hz? 
3.	Question: Which one of the following sets of quantum numbers is not possible? 
4.	Question: In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus: 
5.	Question: Calculate the wavelength of a neutron that has a velocity of 250 cm/s...
![Straighterline CHEM101 General Chemistry I Graded Exam 3 (New Version June 2024)](/docpics/5615764/6668c9a187383_5615764_121_171.jpeg)
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Straighterline CHEM101 General Chemistry I Graded Exam 3 (New Version June 2024)
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Question 1 
Correct 
5.00 points out 
of 5.00 
If 2.38 mol of a gas has a volume of 120.0 mL, what is the volume of 1.97 mol of the gas 
at the same temperature and pressure? 
Select one: 
A. 99.3 mL 
B. 119 mL 
C. 145 mL 
D. 25.6 mL 
E. 563 mL 
Question 2 
Correct 
5.00 points out 
of 5.00 
What are the conditions of STP? 
Select one: 
A. 0°C and 760 atm 
B. 273.15°C and 760 torr 
C. 0 K and 1 atm 
D. 0°C and 1 torr 
E. 273.15 K and 760 torr 
Straighterline CHEM101 General Chemistry I Graded...
STRAIGHTERLINE CHEM101 FINAL
![CHEM133 Week 7 Midterm Exam](/docpics/3639882/652ea0ca81acd_3639882_121_171.jpeg)
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CHEM133 Week 7 Midterm Exam
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1.	Question: What is the volume, in cubic centimeters, of a brick that is 4.0 in × 2.7 in × 8.0 in? 
2.	Question: A sailor circumnavigated the earth and covered 4,264,000 meters. Express this number in standard scientific notation. 
3.	Question: The state of matter for an object that has both definite volume and definite shape is 
4.	Question: How many of the following numbers contain 3 significant figures? 
5.	Question: In the spring of 2008, gasoline cost £1.029 per Liter in London. On the ...
![Straighterline CHEM101 General Chemistry I Graded Exam 1 (New Version June 2024)](/docpics/5615759/6668c99ea6d86_5615759_121_171.jpeg)
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Straighterline CHEM101 General Chemistry I Graded Exam 1 (New Version June 2024)
- Exam (elaborations) • 13 pages • 2024
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Question 1 
Correct 
5.00 points out 
of 5.00 
Talc is a mineral with low conductivity for heat and electricity which is not attacked by acid. 
It is used in talcum powder and face powder. Suppose a sample of talc weighs 13.65 g 
with a density of 1.75 g/cm3 in mineral oil. If this same sample of talc in air weighs 35.97 
g, assuming no volume change, what is the density of the talc sample in air? 
Select one: 
A. 2.44 g/cm3 
B. 2.82 g/cm3 
C. 1.61 g/cm3 
D. 4.61 g/cm3 
E. 2.63 g/cm3 
Question 2...
![CHEM101 Graded Exam 1 FALL 2023 (Straighterline)](/docpics/4055431/65819fd081eef_4055431_121_171.jpeg)
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CHEM101 Graded Exam 1 FALL 2023 (Straighterline)
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A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters (depth). What is the volume of the smart phone in cubic 
centimeters? (1 in = 2.54 cm) 
Select one: 
A. 1.7 × 105 cm3 
B. 34 cm3 
C. 58 cm3 
D. 3.4 cm3 
E. 90 cm3 
The correct answer is: 58 cm3 
A large pizza has a diameter of 15 inches. Express this diameter in centimeters. (1 in = 2.54 cm) 
Select one: 
A. 24 cm 
B. 18 cm 
C. 38 cm 
D. 9.3 cm 
E. 5.9 cm 
The correct answer is: 38 cm 
What is a unifying...
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