Chem1 Guías de estudio, Notas de estudios & Resúmenes
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CHEM101 Graded Exam 2Topic 9: Energy Changes in Chemical Reactions FALL 2023 Straighterline
- Examen • 15 páginas • 2023
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Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and 
potassium chloride when heated. 
KClO3(s) → KCl(s) + O2(g) [unbalanced] 
What mass of oxygen gas is formed if 26.4 g of potassium chlorate decomposes 
completely? 
Select one: 
A. 6.86 g 
B. 99.1 g 
C. 4.60 g 
D. 10.3 g 
E. 223 g 
My Account 
Question 2 
Correct 
5.00 points out 
of 5.00 
Question 3 
Correct 
5.00 points out 
of 5.00 
Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor as ...
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CHEM133 Week 13 Lesson 6 Quiz.docx
- Examen • 13 páginas • 2023
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1.	Question: We discussed the different types of intermolecular forces in this lesson. Which is the strongest in CF2H2 ? 
2.	Question: Water is such a special molecule with some really unique properties. Why is it so unusual? 
3.	Question: We discussed the different types of intermolecular forces in this lesson, which can affect the boiling point of a substance. Which of these has the highest boiling point? 
4.	Question: If you have 2.00 x 103 J of energy, what mass (g) of solid butane (C4H10O) ...
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CHEM133 Week 15 Lesson 7 Quiz
- Examen • 19 páginas • 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
- Examen • 9 páginas • 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)
- Examen • 26 páginas • 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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CHEM133 Week 7 Midterm Exam
- Examen • 27 páginas • 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+
- Examen • 20 páginas • 2023
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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 11 Lesson 5 Quiz
- Examen • 17 páginas • 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....
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General Chemistry II (CHEM113) ACS Final Exam Solved 100% Correct!!
- Examen • 30 páginas • 2023
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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 15 Lesson 7 Quiz
- Examen • 19 páginas • 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...