HEM1 Study guides, Class notes & Summaries
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CHEM133 Week 7 Midterm Exam
- Exam (elaborations) • 27 pages • 2023
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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 ...
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Straighterline CHEM101 Final Exam Graded A+
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Mass Number - ANSWER-total number of neutrons and protons in an atom; # protons + # electrons 
 
p - ANSWER-Most nonmetallic elements are found in which block of the periodic table? 
 
Positive matter is concentrated in the central core - ANSWER-Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... 
 
Potassium - ANSWER-Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to sea? 
 
2:1:1:2 - ANSWER-What is the r...
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CHEM133 Week 15 Lesson 7 Quiz
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1.	Question: A sample of oxygen gas has a volume of 3.52 L at 27°C and 800.0 torr. How many oxygen molecules does it contain? 
2.	Question: Consider a sample of gas in a container on a comfortable spring day. The Celsius temperature suddenly doubles, and you transfer the gas to a container with twice the volume of the first container. If the original pressure was 12 atm, what is a good estimate for the new pressure? 
3.	Question: Gas A and gas B are combined in a flask at initial pressures of 1...
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CHEM133 Week 4 Lesson 2 Quiz
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1.	Question: If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of 
2.	Question: What volume of 18 M sulfuric acid must be used to prepare 1.80 L of 0.215 M H2SO4? 
3.	Question: What is the molecular mass of Br2? 
4.	Question: What is the molar concentration of sulfate ions in a 0.150 M Na2SO4 solution? 
5.	Question: How many moles of hydrogen chloride are contained in a 52.6 g sample of this gas? 
6.	Question: 1.00 mole of O2 contains the same number ...
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CHEM101 Graded Exam 4 Topic 18: Organic Chemistry FALL 2023 (Straighterline)
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Which species will have the greatest absolute entropy at 25°C? 
Select one: 
A. C4H10(g) 
B. H2O(l) 
C. C2H5OH(l) 
D. C2H2(g) 
E. Ne(g) 
Which is a statement of the second law of thermodynamics? 
Select one: 
A. The energy of the universe is constant. 
B. The energy of the universe is decreasing. 
C. The entropy of the universe is increasing. 
D. The enthalpy of the universe is constant. 
E. The entropy of the universe is constant. 
My Account 
Question 3 
Correct 
5.00 points out 
of 5.00 
Que...
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CHEM133 Week 15 Lesson 7 Quiz (All Correct)
- Exam (elaborations) • 19 pages • 2023
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1.	Question: A sample of oxygen gas has a volume of 3.52 L at 27°C and 800.0 torr. How many oxygen molecules does it contain? 
2.	Question: Consider a sample of gas in a container on a comfortable spring day. The Celsius temperature suddenly doubles, and you transfer the gas to a container with twice the volume of the first container. If the original pressure was 12 atm, what is a good estimate for the new pressure? 
3.	Question: Gas A and gas B are combined in a flask at initial pressures of 1...
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PORTAGE LEARNING CHEM 104 (CHEM104)MODULE 1
- Exam (elaborations) • 9 pages • 2024
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PORTAGE LEARNING CHEM 104 MODULE 1 
 
PORTAGE LEARNING CHEM 104 MODULE 1 
 
PORTAGE LEARNING CHEM 104 MODULE 1
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CHEM133 Week 7 Midterm Exam (Spring)
- Exam (elaborations) • 26 pages • 2023
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1.	Question: Dry ice (carbon dioxide) changes from a solid to a gas at –78.5°C. What is this temperature in °F? 
2.	Question: The state of matter for an object that has both definite volume and definite shape is 
3.	Question: In 1828, the diameter of the U.S. dime was changed to approximately 18 mm. What is this diameter when expressed in nanometers? 
4.	Question: A piece of antimony with a mass of 17.41 g is submerged in 46.3 cm3 of water in a graduated cylinder. The water level increases t...
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General Chemistry II (CHEM113) ACS Final Exam Solved 100% Correct!!
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The two states that are collectively known as the condensed states are _______. - solid and liquid 
The attractive forces that exist between all molecules and atoms, and are the forces that hold many 
solids and liquids together - intermolecular forces 
Intermolecular forces are only significant at _____. - short distances 
The state of a sample of matter is determined by the magnitude of __________. - the 
intermolecular forces present 
Gases have a ___ density, ___ shape, and ____ volume. Thes...
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CHEM133 Week 7 Midterm Exam (All Correct)
- Exam (elaborations) • 27 pages • 2023
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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 ...
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