Lavoisier Study guides, Class notes & Summaries
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Chemistry 1311 Exam 2 Questions And Answers Graded A
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Stiochiometry correct answer: Greek 
"Stiochion"= element 
"Metion"= measure 
 
Lavoisier correct answer: Mass is conserved in chemical rxn 
 
2 parts of equation correct answer: Reactant and product 
 
Chemical equation for formation of water correct answer: 2H₂+O₂→2H₂O 
 
Stiochiometric coefficients correct answer: # in front of chemical formulas; give ratio of reactant and products 
 
Law of Conservation of Mass correct answer: Antione Lavoisier 
Matter cannot be lost in any...
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Test Bank for Chemistry 10th Edition Zumdahl Full Chapters Complete Questions and Answers.
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Test Bank for Chemistry 10th Edition Zumdahl Full Chapters Complete Questions and Answers. 
Chapter 02 - Atoms, Molecules, and Ions 
Copyright Cengage Learning. Powered by Cognero. Page 1 
1. The first people to attempt to explain why chemical changes occur were 
a. alchemists 
b. metallurgists 
c. physicians 
d. physicists 
e. the Greeks 
ANSWER: e 
POINTS: 1 
DIFFICULTY: Easy 
REFERENCES: 2.1 
QUESTION TYPE: Multi-Mode (Multiple choice) 
HAS VARIABLES: False 
KEYWORDS: Chemistry | early atomic...
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Test Bank for Chemistry 10th Edition Zumdahl Full Chapters Complete Questions and Answers.
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Test Bank for Chemistry 10th Edition Zumdahl Full Chapters Complete 
Questions and Answers. 
Chapter 02 - Atoms, Molecules, and Ions 
Copyright Cengage Learning. Powered by Cognero. Page 1 
1. The first people to attempt to explain why chemical changes occur were 
a. alchemists 
b. metallurgists 
c. physicians 
d. physicists 
e. the Greeks 
ANSWER: e 
POINTS: 1 
DIFFICULTY: Easy 
REFERENCES: 2.1 
QUESTION TYPE: Multi-Mode (Multiple choice) 
HAS VARIABLES: False 
KEYWORDS: Chemistry | early atomi...
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CHEM 1311 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS
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The Greeks correct answer: tried to explain chemical changes, proposed four fundamental substances (earth, fire, water, air), first proposed atoms as fundamental particles 
 
The Alchemists correct answer: "pseudoscience"/tried to change a base metal of lead into gold 
 
Robert Boyle correct answer: First "chemist"/quantitative measurements on gases/proposed the concept of elements 
 
Joseph Priestly correct answer: discovered oxygen/carefully studied chemical reactions 
 
Law of Mass Co...
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Test Bank for Chemistry 10th Edition Zumdahl Full Chapters Complete Questions and Answers.
- Exam (elaborations) • 147 pages • 2023
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Test Bank for Chemistry 10th Edition Zumdahl Full Chapters Complete Questions and Answers. 
Chapter 02 - Atoms, Molecules, and Ions 
Copyright Cengage Learning. Powered by Cognero. Page 1 
1. The first people to attempt to explain why chemical changes occur were 
a. alchemists 
b. metallurgists 
c. physicians 
d. physicists 
e. the Greeks 
ANSWER: e 
POINTS: 1 
DIFFICULTY: Easy 
REFERENCES: 2.1 
QUESTION TYPE: Multi-Mode (Multiple choice) 
HAS VARIABLES: False 
KEYWORDS: Chemistry | early atomic...
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Chemistry 1311 Exam 2 2023 with 100% correct answers
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Stiochiometry correct answersGreek 
"Stiochion"= element 
"Metion"= measure 
 
Lavoisier correct answersMass is conserved in chemical rxn 
 
2 parts of equation correct answersReactant and product 
 
Chemical equation for formation of water correct answers2H₂+O₂→2H₂O 
 
Stiochiometric coefficients correct answers# in front of chemical formulas; give ratio of reactant and products 
 
Law of Conservation of Mass correct answersAntione Lavoisier 
Matter cannot be lost in any chemical rx...
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ANSC 221 Purdue: Final Exam All Possible Questions and Answers Already Passed 100%
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ANSC 221 Purdue: Final Exam All Possible Questions and Answers Already Passed 100% 
 
Who was Dr. William Beaumont? 
He tried to close a hole in the stomach of Alexio St. Martin. 
What did Dr. William Beaumont propose? 
Proposed in 1833 that the noises you hear from your stomach are stomach contractions and not spirit. 
Who is Lavoisier? 
The Father of Nutrition 
What did Lavoisier design? 
Designed a calorimeter which measured the heat produced by the body from work and consumption of varying a...
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Chemistry 101 Midterm Ivy Tech (1-4) Exam With Correct Answers
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Chemistry 101 Midterm Ivy Tech (1-4) Exam With Correct Answers 
 
Which of the following would be considered a theory? 
a. glass is fragile 
b. hot air rises 
c. gasoline has a very strong odor. 
d. helium balloons float because helium is less dense than air. 
e. none of the above Correct Answer: D 
 
Which statement accurately describes the purpose of experiments? 
a. experiments are designed to produce the results predicted by a theory. 
b. experiments can be replaced by a simple, logical reas...
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Chem 101 Midterm Ivy Tech Questions With Complete Solutions
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Which of the following is considered a hypothesis (as opposed to an observation)? correct answer: Birds can fly because they have hollow bones 
 
Which of the following would be considered a theory? correct answer: Helium balloons float because helium is less dense than air. 
 
Which of the statements below is NOT part of the scientific method? correct answer: All of the above steps are part of the scientific method. 
 
Which statement about a hypothesis is TRUE? correct answer: All of the a...
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Test Bank for Chemistry in Focus A Molecular View of Our World 6th Edition by Nivaldo J. Tro
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Chapter 01 - Molecular Reasons 
1. Which of these is the best definition of matter? 
a. b. c. d. e. 
ANSWER: POINTS: 
The pull of gravity on an object. 
Anything that has weight and volume. 
Anything that has mass and occupies space. 
Anything that is directly proportional to weight. 
The measure of the amount of space an object occupies. 
2. Which of these statements is correct? 
a. Theamountofcarbononearthisessentiallyconstant. 
b. The amount of carbon on earth fluctuates with the seasons. 
c....
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