Atoms to moles Study guides, Class notes & Summaries
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Test Bank For General Chemistry 11th Edition By Ebbing
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1. The molecular formula of a particular solid is C8H4O6. Its molecular mass is 
 	a. 	288 amu. 
 	b. 	100 amu. 
 	c. 	296 amu. 
 	d. 	196 amu. 
 	e. 	170 amu. 
ANSWER: 	d 
POINTS: 	1 
DIFFICULTY: 	easy 
REFERENCES: 	3.1 
LEARNING OBJECTIVES: 	GENE.EBBI.13.67 - Calculate the formula mass from a formula. (Example 3.1) 
TOPICS: 	mass and moles of substance 
stoichiometry 
KEYWORDS: 	molecular mass 
OTHER: 	general chemistry 
 
 
2. The hydrocarbon octane has the structural formula CH3(CH2)...
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Test Bank For Chemistry 13Th Edition By Raymond Chang
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Chapter 03 - Mass Relationships in Chemical Reactions 
Multiple Choice Questions 
Chapter 03 Mass Relationships in Chemical Reactions 
1. An atom of helium has a mass about four times greater than that of an atom of hydrogen. Which choice makes the correct comparison of the redative numbers of helium and hydrogen atoms in equal masses of the two elements? 
A. There are about four times as many helium atoms as hydrogen atoms. 
B. There are about two times as many helium atoms as hydrogen atoms. C...
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BTEC Applied Science Unit 1 Chemistry (Graded)
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BTEC Applied Science Unit 1 Chemistry (Graded) How many electrons can a d subshell hold? correct answer10 
Which subshells are available in the first energy level? correct answers 
Which subshells are available in the second energy level? correct answers and p 
Which subshells are available in the third energy level? correct answers, p and d 
What is Hund's rule? correct answerOrbitals must all be singly filled before they can be doubly occupied 
Which elements do not fill the 4s subshell befor...
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AS-level AQA Chemistry questions and answers
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AS-level AQA Chemistry questions and 
answers 
What is the charge of a proton? - ANSWERS +1 
What is the charge of a neutron? - ANSWERS 0 
What is the charge of an electron? - ANSWERS -1 
What is the mass of a proton? - ANSWERS 1 
What is the mass of a neutron? - ANSWERS 1 
What is the mass of an electron? - ANSWERS 1/1800 
What is an isotope? - ANSWERS Isotopes of an element are atoms with the same 
number of protons but different numbers of neutrons. 
Why do isotopes of an element all have t...
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MLS 121 Laboratory Midterm Exam Questions & answers | Best For 2024 Exam
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MLS 121 Laboratory Midterm Exam Questions & answers | Best For 2024 Exam 5/20/22, 11:47 AM MLS 121 Laboratory Midterm Exam 

Student Identification 0 of 0 points 
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MLS 121 Laboratory Midterm Exam Total points 66/100 
Good Day! 
The MIDTERM examination is a 100-POINT ONLINE EXAM that will utilize a Google Form. It 
is composed of Multiple Choice questions that is answerable within TWO HOURS ONLY. The 
examination shall cover Activities 3 and 4. The exam questionnai...
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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 03 - Atoms and Elements 
1. The most abundant element in the earth's crust by mass is: 
a. Hydrogen 
b. Carbon 
c. Oxygen 
d. Silicon 
e. Nitrogen 
ANSWER: POINTS: 
2. Which of these statements about atoms is incorrect? 
a. Atoms are the smallest visible amount of an element. 
b. Atoms are composed of protons, neutrons, and electrons. 
c. Atoms are the building blocks of all matter. 
d. Atoms are the smallest identifiable unit of an element. 
e. There are 91 different naturally occurrin...
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AP Chemistry Exam Review Questions Well Answered 2024.
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atomic number - Answer The same as the number of protons in the nucleus of an element; it is also the same as the number of electrons surrounding the nucleus of an element when it is neutrally charged. 
 
mass number - Answer The sum of an atom's neutrons and protons 
 
isotopes - Answer Atoms of an element with different numbers of neutrons 
 
Avogadro's number - Answer 6.022×10²³ particles per one mole 
 
Moles - Answer grams/molar mass 
 
Standard Temperature and Pressure (STP)...
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MLS 121 Laboratory Midterm Exam Questions & answers | Best For 2024 Exam
- Exam (elaborations) • 41 pages • 2024
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MLS 121 Laboratory Midterm Exam Questions & answers | Best For 2024 Exam 5/20/22, 11:47 AM MLS 121 Laboratory Midterm Exam 

Student Identification 0 of 0 points 
Kindly complete the data below. 
MLS 121 Laboratory Midterm Exam Total points 66/100 
Good Day! 
The MIDTERM examination is a 100-POINT ONLINE EXAM that will utilize a Google Form. It 
is composed of Multiple Choice questions that is answerable within TWO HOURS ONLY. The 
examination shall cover Activities 3 and 4. The exam questionnai...
-
Straighterline CHEM101 Final Exam Study Guide 2023/2024 Questions with Complete Solutions
- Exam (elaborations) • 20 pages • 2023
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total number of neutrons and protons in an atom; # protons + # electrons - Correct Answer Mass Number 
 
Most nonmetallic elements are found in which block of the periodic table? - Correct Answer p 
 
Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... - Correct Answer Positive matter is concentrated in the central core 
 
Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to sea? - Correct Answer Potassium 
...
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Chemistry AQA AS EXAM 2024 QUESTIONS WITH 100% CORRECT ANSWERS
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Chemistry AQA AS EXAM 2024 QUESTIONS 
WITH 100% CORRECT ANSWERS 
Mass number - ANSWERS Total number of protons and neutrons. 
Atomic number - ANSWERS Numbers of protons in the nucleus and number of 
electrons in shells. 
Negative Ions - ANSWERS More electrons than protons. 
Positive ions - ANSWERS More protons than electrons. 
Relative isotopic mass - ANSWERS mass of an atom of an isotope of an element on a 
scale where an atom of carbon12 is 12. 
Relative atomic mass - ANSWERS average mass o...
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