Millikan - Study guides, Class notes & Summaries
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Chemistry 5th edition burdge test bank
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1) The scientist who determined the magnitude of the electric charge on the electron was 
A) John Dalton. 
B) Robert Millikan. 
C) J. J. Thomson. 
D) Henry Moseley. 
E) J. Burdge. 
Answer: B 
Difficulty: 1 Easy 
Topic: Components of Matter 
Bloom's: 1. Remember 
Subtopic: Structure of the Atom 
Gradable: automatic 
Accessibility: Keyboard Navigation 
2) When J. J. Thomson discovered the electron, what physical property of the electron did he 
measure? 
A) its charge, e 
B) its charge-to-mass ra...
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Test Bank For General Chemistry The Essential Concept 7Th Edition Raymond By Chang
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Chapter 01: Introduction 
1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as 
A) a hypothesis. B) a law. C) a theory. D) none of the above. 
Ans: A Category: Easy Section: 1.2 
2. A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as 
A) a hypothesis. B) a law. C) a theory. D) none of the above. 
Ans: B Category: Easy Section: 1.2 
3. A un...
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CHEM 121 Chapters 2 – 6 Answers| 100% CORRECT
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CHEM 121 Chapters 2 – 6 Answers 
CHEM 121 Chapter 2 Answers 
 
what is the law of conservation of mass (by Lavoisier) 
there is no change in mass when a chemical reaction occurs 
 
What is the law of definite proportions (by Proust) 
a compound always contains elements combined in the same proportion by mass Ex 1.000g of water (H2O) .111g of H and .889g of O ratio is always 1:8.01 
 
what is the atomic theory of matter and who discovered it 
John Dalton all matter, whether element, compound...
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ACS Chemistry Final Exam Questions and Answers | 100% Pass
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ACS Chemistry Final Exam 
Questions and Answers | 100% Pass 
Layout of an element (mass # & atomic #) - ️️ Correct- 
atomic number = - ️️ Correct-# of protons 
mass number = - ️️ Correct-# of protons + neutrons 
the number of protons in a neutral atom will equal the - ️️ Correct-# of electrons 
how to find the correct number of neutrons - ️️ Correct-mass number - atomic number 
Forms of the same elements that differ in amount of neutrons - ️️ Correct-isotopes 
What partic...
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CHEM2 Chemistry in Your World 2nd Edition by Hogg - Test Bank
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Chapter 1—Living in a World of Chemistry 
 MULTIPLE CHOICE 
1. Which activity comes first in the scientific method? a. conclusion 
b. hypothesis 
c. experimentation d. observation 
ANS: D 
2. Which is considered a physical science? a. physics 
b. biology c. zoology d. botany 
ANS: A 
3. A scientist is trying to make a new insecticide that will be more toxic to flies, but less toxic to humans than insecticides now available. The scientist is engaged in 
a. basic research. 
b. applied research. ...
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Automic History and Nuclear Chemistry Scientists Actual Exam Questions And Correct Answers 100% Verified.
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Plato - correct answer 430-347 BCE 
 
Aristotle - correct answer 384-322 BCE 
 
Democritus - correct answer 460-370 BCE 
 
Antoine Lavoisier - correct answer 
 
Joseph Proust - correct answer 
 
John Dalton - correct answer 
 
William Crookes - correct answer 
 
J.J. Thomson - correct answer 
 
Robert Millikan - correct answer 
 
Wilhelm Roentgen - correct answer 
 
Henri Becquerel - correct answer 
 
Ernest Rutherford - correct answ...
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ACS Gen Chem 1 Exam Study Guide with Complete Solutions
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ACS Gen Chem 1 Exam Study Guide 
with Complete Solutions 
Extensive Property - ️️ Correct-Values that depend on how much you have 
Intensive property - ️️ Correct-Independent of size sample 
Density - ️️ Correct-Mass/volume 
Homogeneous mixture - ️️ Correct-Same throughout, indistinguishable parts 
Heterogeneous - ️️ Correct-Different parts, distinguishable parts 
Diatomic elements - ️️ Correct-N2, O2, H2, Cl2, Br2, I2 
John dalton - ️️ Correct-Founded the atomic theo...
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Chemistry 11th Edition Chang Helpful Unhelpful
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Chapter 2: Atoms, Molecules, and IonsIn a cathode ray tube A) electrons pass from the anode to the cathode. B) electrons pass from the cathode to the anode. C) protons pass from the anode to the cathode. D) protons pass from the cathode to the anodeThe scientist who determined the magnitude of the electric charge of the electron was A) John Dalton. D) Henry Moseley. B) Robert Millikan. E) R. Chang. C) J. J. ThomsonWhen J. J. Thomson discovered the electron, what physical property of the electron...
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Chemistry chapter 4: automic structure Practice Questions And Well Elaborated Answers.
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Democritus's atomic philosophy - correct answer - atoms were indivisible and indestructible 
- philosophers like Plato and Aristotle disagreed saying that everything was made out of the basic elemets 
 
Dalton's Atomic Theory - correct answer 1) elements are composed of atoms. 
2) atoms of same element are identical, but differ from other elements. 
3) elements can physically mis together to form mixtures or chemically combine in whole number ratios to form compound s 
4) chemical ...
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Chemistry 121 Exam 1 Well tackled 2023/2024
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What are the three states of matter? - ANSWERS solid, liquid and gas 
 
___ is the study of properties and behavior of matter. - ANSWERS chemistry 
 
___ is the physical material of the universe. It is also anything the has mass and occupies space. - ANSWERS matter 
 
__ is matter that is made up of one "thing" - ANSWERS pure substance 
 
__ is a mixture that doesn't have the same composition, properties, and appearance throughout. - ANSWERS heterogeneous 
 
__ is a mixture that is uniform th...
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