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une chem 1011 final week 11 & 12 Questions With Complete Solutions
Which of the following is always true? -Spontaneous changes cause an increase in the entropy of the universe -Heat will flow from a cooler object to a hotter object -Processes that involve an increase in entropy of the system are spontaneous -The change in entropy of the universe is the same as the change in entropy of the surroundings correct answer: Spontaneous changes cause an increase in the entropy of the universe A pure, perfectly crystalline solid at 0 K correct answer: has zero ...
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Which of the following is always true? -Spontaneous changes cause an increase in the entropy of the universe -Heat will flow from a cooler object to a hotter object -Processes that involve an increase in entropy of the system are spontaneous -The change in entropy of the universe is the same as the change in entropy of the surroundings correct answer: Spontaneous changes cause an increase in the entropy of the universe A pure, perfectly crystalline solid at 0 K correct answer: has zero ...
UNE chem 1011 final Questions With Complete Solutions
UNE chem 1011 final Questions With Complete Solutions
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UNE chem 1011 final Questions With Complete Solutions
CHEM 1011 Midterm Questions With Complete Solutions
CHEM 1011 Midterm Questions With Complete Solutions
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CHEM 1011 Midterm Questions With Complete Solutions
Week 13 chem 1011 Questions With Complete Solutions
Representative Elements correct answer: Groups 1, 2, 13-18 The outer e- belongs to 's' or 'p' groups Metals correct answer: Elements that readily lose electrons (form cation), giving them a high heat and electrical conductivity levels, high luster and variety of hardness Nonmetals correct answer: Readily gain e-, do not generally conduct heat/electricity Usually liquids and gases, some soft solids Metalloids correct answer: Elements that may accept or donate electrons readily ...
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Representative Elements correct answer: Groups 1, 2, 13-18 The outer e- belongs to 's' or 'p' groups Metals correct answer: Elements that readily lose electrons (form cation), giving them a high heat and electrical conductivity levels, high luster and variety of hardness Nonmetals correct answer: Readily gain e-, do not generally conduct heat/electricity Usually liquids and gases, some soft solids Metalloids correct answer: Elements that may accept or donate electrons readily ...
CHEM 1011 CU Boulder Questions With Complete Solutions
What are the 3 largest components of our atmosphere? correct answer: Nitrogen - 78% Oxygen - 21% Argon - 1% How is the periodic table arranged? correct answer: By how elements bond What row are the Halogens? correct answer: 7A - Second from the right What row are the Noble Gases? correct answer: 8A - Far right What is unique about the Noble Gases? correct answer: They are stable and don't like to bond What row are the Alkali Metals correct answer: 1A - Far left What ar...
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What are the 3 largest components of our atmosphere? correct answer: Nitrogen - 78% Oxygen - 21% Argon - 1% How is the periodic table arranged? correct answer: By how elements bond What row are the Halogens? correct answer: 7A - Second from the right What row are the Noble Gases? correct answer: 8A - Far right What is unique about the Noble Gases? correct answer: They are stable and don't like to bond What row are the Alkali Metals correct answer: 1A - Far left What ar...
UNE CHEM 1011 Exam 1 Questions With Complete Solutions
pure substance correct answer: A sample of matter, either a single element or a single compound, that has definite chemical and physical properties Examples of pure substances correct answer: elements, compounds, water, table salt (sodium chloride), ethanol, gold, bronze, etc. Mixture correct answer: A combination of two or more substances that are not chemically combined homogeneous mixture correct answer: A mixture in which substances are evenly distributed throughout the mixture ...
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pure substance correct answer: A sample of matter, either a single element or a single compound, that has definite chemical and physical properties Examples of pure substances correct answer: elements, compounds, water, table salt (sodium chloride), ethanol, gold, bronze, etc. Mixture correct answer: A combination of two or more substances that are not chemically combined homogeneous mixture correct answer: A mixture in which substances are evenly distributed throughout the mixture ...
UNE 1011 midterm| 189 Questions| With Complete Solutions
Strong electrolytes: ciate almost completely into ions in solution b. only yield a small fraction of ions in solution c. are always dissolved ionic compound d. Can not be covalent compounds correct answer: a. dissociate almost completely into ions in solution Hexane is commonly used in labs as solvent for non polar compounds. what is the molality of 22.3 mg of vitamin D (C27H44O, 384.6 g/mol) in 50 mL of hexane? Hexane has a density of 0.661 g/mol correct answer: 1.75 X 10^-3 m A...
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Strong electrolytes: ciate almost completely into ions in solution b. only yield a small fraction of ions in solution c. are always dissolved ionic compound d. Can not be covalent compounds correct answer: a. dissociate almost completely into ions in solution Hexane is commonly used in labs as solvent for non polar compounds. what is the molality of 22.3 mg of vitamin D (C27H44O, 384.6 g/mol) in 50 mL of hexane? Hexane has a density of 0.661 g/mol correct answer: 1.75 X 10^-3 m A...
Matthew L's TSI Math Cards
If you aren't sure how to solve a problem, what can you do? correct answer: Plug in the answers. Rewrite problem. Draw a picture if relevant. Write down any equations that might be used. Like area of a triangle, circumference of a circle, area of a rectangle, etc. What can help you solve tables, charts, and graphs? correct answer: Write down numbers from the graph instead of just keeping the numbers in your head. How do you solve an equation like: 2x² = 10x correct answer: FIRST -...
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If you aren't sure how to solve a problem, what can you do? correct answer: Plug in the answers. Rewrite problem. Draw a picture if relevant. Write down any equations that might be used. Like area of a triangle, circumference of a circle, area of a rectangle, etc. What can help you solve tables, charts, and graphs? correct answer: Write down numbers from the graph instead of just keeping the numbers in your head. How do you solve an equation like: 2x² = 10x correct answer: FIRST -...
TSI Reading
main idea - the author's central thought; what an author wants to say about a topic topic - overall subject of a text compare (verb) - to find similarities contrast (verb) - to find differences context clue - a word, phrase, or sentence in the text around an unfamiliar word that helps you identify the word's meaning text evidence - evidence from the reading selection that proves the answer to a question about the text author's purpose - the author's intent either to inform,...
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main idea - the author's central thought; what an author wants to say about a topic topic - overall subject of a text compare (verb) - to find similarities contrast (verb) - to find differences context clue - a word, phrase, or sentence in the text around an unfamiliar word that helps you identify the word's meaning text evidence - evidence from the reading selection that proves the answer to a question about the text author's purpose - the author's intent either to inform,...
TSI Assessment Practice (Writing) Questions With Complete Solutions
(1) Seaweed-based fuel could one day power your car. (2) It is more than just an ingredient in a purifying face mask or a sushi roll. (3) According to new research, seaweed has the potential to become an advanced biofuel known as biobutanol. (4) In the past, U.S. scientists have looked to the possibility of algae-based biofuels, but most of these explorations have shied away from kelp and seaweed. (5) One reason why seaweed may not have taken off as a potential fuel source is the fact that it...
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(1) Seaweed-based fuel could one day power your car. (2) It is more than just an ingredient in a purifying face mask or a sushi roll. (3) According to new research, seaweed has the potential to become an advanced biofuel known as biobutanol. (4) In the past, U.S. scientists have looked to the possibility of algae-based biofuels, but most of these explorations have shied away from kelp and seaweed. (5) One reason why seaweed may not have taken off as a potential fuel source is the fact that it...
Chem 1020 Lab Final Questions With Complete Solutions.
ICC Vapor Recovery 1| 60 Questions| With Complete Solutions
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ACAS Best Practice Knowledge Exam 1,2,3,4,5 and 6 Questions And Answers With Complete Solutions