Nh3 - Study guides, Class notes & Summaries
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BioChem 210 Module 2 Exam - Portage Learning
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BioChem 210 Module 2 Exam - Portage 
Learning 
1. The pH of a solution of 0.0010 M NaOH is:: 11 (Kw=[H+][OH-] = 
1.0 x 10-14; 
[H+][0.0010] = 1.0 x 10-14 [H+]=1.0 x 10-11; pH=-log[1.0 x 10- 
11]=11) 
2. Water is a unique molecule. Which of the following 
contributes to water's unique place in the chemical world?: 
All of the answers are correct 
3. The bent shape of water is due to ______________.: The 
unshared electron pairs on the oxygen atom 
4. Which diagrams correctly represent ...
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OCR CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS Haloalkane to nitrile - ANSWER-nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - ANSWER-Nucleophilic substitution Excess ethanolic NH3 with no
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OCR CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS 
 
 
 
Haloalkane to nitrile - ANSWER-nucleophilic substitution 
 
 
 
ethanolic NaCN or KCN 
 
 
 
heat 
 
 
 
Haloalkane to primary amine (also makes NH4X) - ANSWER-Nucleophilic substitution 
 
 
 
Excess ethanolic NH3 with no further substitution 
 
 
 
HEAT under PRESSURE 
 
 
 
acyl chloride/acid anhydride to SECONDARY amide - ANSWER-Nucleophilic substitution 
 
 
 
primary amine 
 
 
 
Acyl chloride/acid anhydride to PRIMARY amide - ANSWER-Nu...
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FNH355 exam fully solved & updated.
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What population of the world doesn't consume enough food to live a healthy active life? 
~11 
 
 
 
What two things contribute to malnutrtion? 
undernutrition AND overnutrition 
 
 
 
 
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Food Security definition 
When all people at all time have physical and economic access to sufficient safe and nutritious food that meets their dietary needs and food preferences for an ac...
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ECIV 350 Test Problems Questions with Complete Solutions
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(Lecture 3-5) A water contains two nitrogen species. The concentration of NH3 is 30 mg/L NH3, and the concentration of NO3 - is 5 mg/L NO3 - . What is the total nitrogen concentration in units of mg N/L? Correct Answer-25.8 mg N/L 
 
(Lecture 3-5) What pH is required to reduce a high concentration of dissolved Mg2+ to 43 mg/L? Ksp for the following reaction is 10-11.16. Mg(OH)2(s) Mg2+ + 2OH Ksp = 10-11.16 Correct Answer-Ph=9.79 
 
(Lecture 3-5) How long will it take the carbon monoxide (CO) con...
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Chem 210 Final: Mastering Chem 2023 With Complete Updated Solution Highest: Nh3 SbH3 AsH3 PH3 - answerThe hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point. Dispersion - answerWhat is the strongest type o
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Chem 210 Final: Mastering Chem 2023 With Complete 
Updated Solution 
Highest: Nh3 SbH3 AsH3 PH3 - answerThe hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point. 
Dispersion - answerWhat is the strongest type of intermolecular force present in H2? 
Co2 - answerIdentify the compound that does not have dipole-dipole forces as its strongest force. 
1 and 2 - answerWhich of the following must be overcome during the boiling of acetonitrile, CH3CN? 
1. d...
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2023 AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
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2023 AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Question 
Paper & Mark scheme (Merged) June 2023 [VERIFIED] 
Monday 12 June 2023 Morning Time allowed: 2 hours 
Materials 
For this paper you must have: 
• the Periodic Table/Data Booklet, provided as an insert (enclosed) 
• a ruler with millimetre measurements 
• a scientific calculator, which you are expected to use where appropriate. 
Instructions 
• Use black ink or black ball-point pen. 
• Fill in the boxe...
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Chem 103 exam 1 Ch 1-3 Prelec/hw Questions with Correct Answers
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A uniform combination of two or more pure substances can be classified as _____. Correct Answer-a homogeneous mixture 
 
Which of these pure substances is an element? 
 
- C12H22O11 (sucrose, table sugar) 
- O2 
- CH4 (methane, the primary component of natural gas) 
- NH3 (ammonia, a component of fertilizer) Correct Answer-O2 
 
Based on the organization of the periodic table, periods _____. Correct Answer-are the horizontal rows 
 
To which group and period does potassium belong? Correct Answer...
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AFO (Aquatics Facilitator Operator) Glossary Exam Study Guide with Complete Solutions Latest Updated 2024/2025
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AFO (Aquatics Facilitator Operator) Glossary Exam Study Guide with Complete Solutions Latest Updated 2024/2025 
Acid - Correct Answer A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH 
 
Algae - Correct Answer a simple nuisance plant life that colonizes in water under favorable conditions 
 
Alkalinity - Correct Answer A measure of the pH-buffering capacity of water 
 
Aluminum Sulfate - Correct Answer Alum; a flocculating agent f...
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CEM 142 MOCK EXAM 2 QUESTIONS AND ANSWERS ALREADY PASSED
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CEM 142 MOCK EXAM 2 QUESTIONS 
AND ANSWERS ALREADY PASSED 
 
Imagine a reaction in which compound A (which is a blue compound) reacts with compound B 
(which is a yellow compound) to give AB. 
A2 + B2 --> 2AB 
 
What can you say about the color of compound AB? It is impossible to predict what the 
color of AB is from the information given 
 
Which acid is the strongest of CH4 NH3 OH2 and HF HF because H and F are small atoms - 
more bond overlap, not willing to share electrons, most positive ...
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Straighterline CHEM101 General Chemistry I Graded Exam 4 (New Version June 2024)
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Question 1 
Correct 
5.00 points out 
of 5.00 
According to which scientific law does the entropy of the universe increase in spontaneous 
processes and remain unchanged in equilibrium processes? 
Select one: 
A. 1st universal law 
B. 1st law of entropy 
C. 2nd law of thermodynamics 
D. 3rd law of thermodynamics 
E. 1st law of thermodynamics 
Straighterline CHEM101 General Chemistry I Graded Exam 4 (New Version June 2024) 
We are a team of experts offering class attendance for all Straighterline...
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