Subscripts Samenvattingen, Aantekeningen en Examens
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Test Bank For Chemistry 4th Edition by Julia Burdge
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Chapter 03 Stoichiometry: Ratios of Combination 
1. Calculate the molecular mass of tetraphosphorus decaoxide, P4O10, a corrosive substance which can be used as a drying agent. 
A. 469.73 amu 
B. 283.88 amu 
C. 190.97 amu D. 139.88 amu E. 94.97 amu 
2. Calculate the formula mass of rubidium carbonate, Rb2CO3. A. 340.43 amu 
B. 255.00 amu 
C. 230.95 amu 
D. 145.47 amu E. 113.48 amu 
3. Calculate the formula mass of (NH4)3AsO4. A. 417.80 amu 
B. 193.05 amu 
C. 165.02 amu 
D. 156.96 amu E. 108.96 a...
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NUTR 376 Test 5 Ch. 9 Questions With Complete Solutions
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tasteless, organic compounds correct answer: vitamins 
 
vitamins are required in small or large amounts correct answer: small 
 
vitamins help regulate correct answer: metabolism 
 
vitamins help convert energy in fat, carbs, and protein into correct answer: ATP 
 
vitamins promote ____ and ____ correct answer: growth and reproduction 
 
T/F: vitamin deficiencies can result in potentially serious symptoms correct answer: T 
 
when were vitamins discovered correct answer: about 100 years ...
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CHEM 131 Introduction to Chemistry with Lab Test | Guide 2023
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CHEM 131 Introduction to Chemistry with Lab Test | Guide 2023. 
Suppose you were tasked with producing some nitrogen monoxide (a.k.a. nitric oxide). I'm sure 
this is often requested of you. You can do it by combusting ammonia (be careful!). The equation 
would be as follows: 4NH3 + 5O 2→ 4NO + 6H2O. If you form 3.50 mol of water, how much 
NO forms? 
A.2.33 mol. 
B.4.00 mol. 
C.4.50 mol. 
D.6.75 mol. 
E.none of the above 
Answer Key: A 
Feedback: Good. See section 8.6 
Question 9 of 12 0.0/ ...
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ABCTE- Basic Chemistry Part 2 questions and answers 2024/2025
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ABCTE- Basic Chemistry Part 2What is a chemical reaction - correct answer a chemical reaction? 
 
Some indications of a chemical reaction include what - correct answer a change in temperature, such as in fire, a color change that indicates the presence of a different substance, and the generation of electrical current by a battery. 
 
Chemical reactions are written using what - correct answer shorthand similar to a mathematical equation. 
reactant A + reactant B product C + product D 
 
Unli...
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CMPSC 201 Final Exam Clicker Questions and Answers 2023 with complete solution
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CMPSC 201 Final Exam Clicker Questions and Answers 2023 with complete solution 
 
 
In C++, the elements of the array (values stored in the array) must be 
 
A. of the same data type 
B. floating point numbers 
C. whole number 
D. positive whole numbers 
E. Boolean values 
A. of the same data type 
Which of the following would create an array that would hold up to 50 floating points numbers? 
 
A. float my array[51]; 
B. float my array[50]; 
C. in abc[50]; 
D. double xyz[50]; 
E. double xyz[49];...
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CHEM 120 Week 2 Discussion; Atomic Structure - Ibuprofen (Option 1)
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Your initial post in the discussion this week consists of two parts. First, choose a molecule used in healthcare, industry, or found in a natural source and discuss the importance of this molecule. Be sure to include at least one outside source and make sure to follow APA citation guidelines. 
In the second part of your initial post, we will be practicing naming ionic and covalent compounds as well as polyatomic ions. To begin, give the chemical formula for each of the following: A covalent comp...
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ABCTE- Basic Chemistry Part 2 questions and answers 2024-2025
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ABCTE- Basic Chemistry Part 2What is a chemical reaction - correct answer a chemical reaction? 
 
Some indications of a chemical reaction include what - correct answer a change in temperature, such as in fire, a color change that indicates the presence of a different substance, and the generation of electrical current by a battery. 
 
Chemical reactions are written using what - correct answer shorthand similar to a mathematical equation. 
reactant A + reactant B product C + product D 
 
Unli...
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CISC 3325 - Final Review || with 100% Accurate Solutions.
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symmetric key encryption correct answers encryption method that uses the same key to encrypt and decrypt the data 
 
asymmetric key encryption correct answers encryption method that uses different keys to encrypt and decrypt the data. Each user has two keys, one public and one private 
 
key exchange protocol correct answers 1. A sends to B 
 E(Kpub-B,(E(Kpriv-A,K)) 
where K is the symmetric key 
 
2. B uses Kpriv-B to decrypt the Kpub-B encryption 
 
3. B uses Kpub-A to decrypt the Kpriv-A enc...
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CHEM 1332 Practice Exam 1 Questions & Answers Solved 100% Correct!!
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What molality of pentane solution is obtained by dissolving 5.0 g pentane, C5H12, in 245.0 g hexane, 
C6H14? Enter your answer with two decimal places and no units. 
Molar mass pentane: 72.15 g/mol 
Molar mass hexane: 86.18 g/mol - 0.28 
5 g pentane x (1 mol/ 72 g)= 0.069 mol pentane 
245g > .245 kg hexane 
0.069 mol/ .245= 0.28 
If an aqueous CsCl solution is 7.28% CsCl (by mass) and has a density of 1.05 g/mL at 20.°C,what is the 
expected boiling point of the solution? Kb = 0.51°C/m for ...
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SCI 131 WEEK QUIZ QUESTIONS AND ANSWERS
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Tests & Quizzes 
SCI 131 WEEK QUIZ QUESTIONS AND ANSWERS 
Lesson 05 - Week 05 Quiz 
Return to Assessment List 
 
 
Part 1 of 1 -	100.0 Points 
 
 
Question 1 of 25 
`Sodium and chlorine are very dangerous by themselves. However, when we combine them together in a chemical 
 
 
4.0 Points 
 
reaction, we eat it--it's table salt: 2Na + Cl2 → 2NaCl. If I want to make 50.0 g of my own salt (because I can and that's how I roll), how much elemental sodium would I need? NOTE: All numbers locate...
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CHEM 1020 Exam 1 Questions With 100% Correct Answers 2023
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CHEM 1020 Exam 1 Questions With 100% Correct Answers 2023 
matter 
any solid, liquid, gas, or plasma that occupies a space and has mass 
 
 
 
homogeneous mixture 
mixture that is uniform throughout (solution) 
 
 
 
heterogeneous mixture 
mixture that is not uniform throughout 
 
 
 
atoms 
smallest unit of an element 
 
 
 
element 
many atoms of the same type; most basic building blocks 
 
 
 
compounds 
different elements bonded together (pure substance) 
 
 
 
chemical symbols 
one or two l...