Aluminum answer al - Study guides, Class notes & Summaries
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TEST BANK FOR CHEMISTRY; AN ATOMS FIRST APPROACH, 2ND EDITION BY STEVEN S. ZUMDAHL | COMPLETE CHAPTER 1-21
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TEST BANK FOR CHEMISTRY; AN ATOMS FIRST APPROACH, 2ND EDITION BY STEVEN S. ZUMDAHL | COMPLETE CHAPTER 1-21. Consider the element indium, atomic number 49, atomic mass 114.8 g. The nucleus of an atom of indium-112 
contains: 
a. 49 protons, 63 neutrons, 49 electrons. 
b. 49 protons, 49 neutrons. 
c. 49 protons, 49 alpha particles. 
d. 49 protons, 63 neutrons. 
e. 49 protons, 112 neutrons. 
ANSWER: d 
POINTS: 1 
2. A hypothetical element consists of two isotopes of masses 78.95 amu and 80.95 amu w...
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LMRT State Review Exam |138 Questions With Answers Graded A+.
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LMRT State Review Exam |138 Questions With Answers Graded A+. 
Which of the following statements are correct regarding the link between radiation dose 
and genetic effects? 
1. The link has been demonstrated in human studies. 
2. The link has been demonstrated in animal studies. 
3. increased risk to humans cannot be predicted with respect to an individual. - Answer 
2 and 3 only 
Which of the following changes in kilovoltage (KVP) will result in the greatest reduction 
of patient dose, when mil...
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SAMPLE CHEMISTRY PLACEMENT EXAM QUESTIONS WITH COMPLETE SOLUTIONS 100% 2023/2024
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SAMPLE CHEMISTRY PLACEMENT EXAM QUESTIONS WITH COMPLETE SOLUTIONS 100% 2023/2024 
Answer: Oxygen 
Aluminum forms a +3 ion. In order for the formula unit Al₂X₃ to be electrically neutral, the element X must form a -2 ion. Nonmetals in the oxygen column do this. Of these elements, only oxygen is a diatomic gas. 
Aluminum reacts with element X to form a compound with the formula A₂X₃. Element X exists as diatomic molecules, X₂, in the gaseous state at normal temperature and pressure. Elem...
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CHEM 103 Nomenclature Practice Questions and Correct Answers
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Na⁺ 
Answer: Sodium Ion 
Zn²⁺ 
Answer: Zinc Ion 
Al³⁺ 
Answer: Aluminum Ion 
Fe²⁺ 
Answer: Iron(II) Ion or Ferrous Ion 
Fe³⁺ 
Answer: Iron (III) Ion or Ferric Ion 
Cu⁺ 
Answer: Copper(I) Ion or Cuprous Ion 
Cu²⁺ 
Answer: Copper(II) Ion or Cupric Ion 
NH₄⁺ 
Answer: Ammonium Ion 
H₃O⁺ 
Answer: Hydronium Ion 
H⁺ 
Answer: Hydrogen Ion 
Li⁺ 
Answer: Lithium Io
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TEST BANK FOR CHEMISTRY –THE CENTRAL SCIENCE 14TH EDITION BY BROWN | REAL TESTED EXAM COMBINED {CH1} QUESTIONS ANSWERED CORRECTLY | LATEST UPDATE
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TEST BANK FOR CHEMISTRY –THE 
CENTRAL SCIENCE 14TH EDITION BY 
BROWN 
| REAL TESTED EXAM COMBINED {CH1} 
QUESTIONS ANSWERED CORRECTLY | 
LATEST UPDATE 
Chemistry: The Central Science, 14e (Brown, et al.) 
Chapter 1 Introduction: Matter, Energy, and Measurement 
1.1 Multiple-Choice Questions 
1) What is the physical state in which matter has a specific volume but does not have a specific 
shape? 
A) gas 
B) solid 
C) liquid 
D) salts 
E) ice 
Answer: C 
Diff: 1 Var: 1 Page Ref: Sec. 1.2 
L...
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Test Bank for Chemistry The Central Science 15th Edition Brown
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4) A small amount of salt dissolved in water is an example of a ________. 
A) homogeneous mixture 
B) heterogeneous mixture 
C) compound 
D) pure substance 
E) solid 
Answer: A 
Diff: 1 Var: 1 Page Ref: Sec. 1.2 
LO: 1.2 
GO: G2 
5) Which one of the following has the element name and symbol correctly matched? 
A) S, sodium 
B) Tn, tin 
C) Fe, iron 
D) N, neon 
E) B, bromine 
Answer: C 
Diff: 1 Var: 1 Page Ref: Sec. 1.2 
LO: 1.2 
GO: G2 
6) Which one of the following elements is identified by the...
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Sample Chemistry Placement Exam Questions and Answers 2024/2025
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Sample Chemistry Placement Exam Questions and Answers 2024/2025 
 
 
Answer: Oxygen 
Aluminum forms a +3 ion. In order for the formula unit Al₂X₃ to be electrically neutral, the element X must form a -2 ion. Nonmetals in the oxygen column do this. Of these elements, only oxygen is a diatomic gas. 
Aluminum reacts with element X to form a compound with the formula A₂X₃. Element X exists as diatomic molecules, X₂, in the gaseous state at normal temperature and pressure. Element 
X must b...
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NMTCB EXAM PREP ACTUAL QUESTIONS AND ANSWERS 2024/2025 GUARANTEED SUCCESS 100%
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NMTCB EXAM PREP ACTUAL QUESTIONS 
AND ANSWERS 2024/2025 GUARANTEED 
SUCCESS 100% 
Common Reactor produced radionuclides? - Answer ️️ -Mo-99/Tc-99m , I-131, I-125, Xe-133, 
Sr-89, Sm-153, P-32, Cr-51 
Common Accelerator produced radionuclides? - Answer ️️ -I-123, Th-201, Ga-67, In-111, All 
positron emitters 
Bremsstrahlung? - Answer ️️ -*radiation that results from deceleration of the beta particles as 
they approach the nuclei 
Film Badge Imp. Points - Answer ️️ -*made of 3to4 f...
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LMRT ARRT EXAM QUESTIONS AND ANSWERS 100% PASS
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LMRT ARRT EXAM QUESTIONS AND 
ANSWERS 100% PASS 
Roentgen discovered x-rays while working with a _____ tube? - Answer-Crookes 
An "electron cloud" surrounding the filament of the cathode is referred to as a - Answer- 
Space charge 
Free electrons of X-ray production come from the - Answer-Filament 
The creation of the space charge in the X-ray tube produces: - Answer-thermionic 
emission 
The majority of photons in the X-ray beam are created by which process? - Answer- 
Bremsstrahlung interact...
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CSM CHEM 210 Final Exam Questions and Answers 100% Solved
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CSM CHEM 210 Final Exam Questions and Answers 100% Solved 
If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel efficiency in Kilometers per liter? ( 1Km= 0.621 mile, 1.00 L=1.057 quarts and 4 quarts = 1 gallon) 9.4 Km/L 
*What is the correct answer to the following expression: (49.1 - 42.61 ) x 13.1? 85 
An intensive property of a substance is independent of amount. True 
Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu. The average atomic m...
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