Tetrahedral bond angle - Study guides, Class notes & Summaries
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A Level Chemistry OCR A Questions & 100% correct Answers- Latest Test | Graded A+ | Passed
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Ammonium ion 
Ξ -:- NH₄⁺ 
Nitrate ion 
Ξ -:- NO₃⁻ 
Nitric Acid 
Ξ -:- HNO₃ 
Covalent bond 
Ξ -:- A covalent bond is the strong electrostatic attraction between a shared pair of 
electrons and the nuclei of the bonded atoms 
Dative covalent bond 
Ξ -:- A dative covalent bond is a shared pair of electrons where both electrons are 
from the same atom 
Cyanide ion 
Ξ -:- CN⁻ 
Shape of molecule with *2* bonded electron pairs 
Ξ -:- Linear, 180 ° 
Shape of molecule with *3* bonde...
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ACS Chemistry Final general Chem 1 Review 63 Questions with Verified Answers,100% CORRECT
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ACS Chemistry Final general Chem 1 Review 63 Questions with Verified Answers 
 
Density - CORRECT ANSWER mass / volume 
 
Conversion from celsius to kelvin - CORRECT ANSWER K = DegC + 273.15 
 
Conversion from DegF to DegC - CORRECT ANSWER DegC = (5/9) (DegF - 32) 
 
Conversion from DegC to DegF - CORRECT ANSWER DegF = (9/5)(DegC) + 32 
 
Intensive properties - CORRECT ANSWER Independent of amount of matter examined 
 
Extensive propertires - CORRECT ANSWER Dependent of amount of matter examined...
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Portage Learning Chem 210 Biochem Final Exam 2023/2024 SOLVED
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Portage Learning Chem 210 Biochem Final Exam 2023/2024 SOLVED 
What are the three things biochemists study? - 1. the relationship between structure and function of a 
biomolecule 
2. chemical reactions of organisms (metabolism) 
3. communication with and among organisms (chemical messengers) 
Which protein is found in lightening bugs to produce light? - luciferin 
How many elements are found in living organisms? - 30 or less 
What type of elements do you find in living organisms? - smaller, non...
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Portage Learning Chem 210 Final exam Portage Biochemistry
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Portage Learning Chem 210 Final exam 
Portage Biochemistry 
ortage Biochemistry 
T or F: according to the module, a compound with a molecular mass of 12,000 
g/mol is considered a macromolecule. 
True 
T or F: biomolecules can have two or more different functional groups. 
True 
T or F: in an eukaryotic cell, the organelle called a lysosome serves the purpose 
of digesting macromolecules. 
True 
T or F: carbon dioxide has a tetrahedral molecular shape AND has a bond angle 
of 180 
False 
Of the ...
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Solution Manual for Organic Chemistry Mechanistic Patterns Canadian 1st Edition by Ogilvie Ackroyd Br
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Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence electrons. Build a bas...
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Solution Manual for Organic Chemistry Mechanistic Patterns Canadian 1st Edition by Ogilvie Ackroyd Br
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Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence electrons. Build a bas...
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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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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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CHEM 210 - Biochemistry Exam Questions And Answers (Updated And Verified)
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CHEM 210 - Biochemistry Exam Questions 
And Answers (Updated And Verified) 
What do Biochemists study? - answer1. The relationship between structure and function of 
biomolecules 
2. Chemical reactions of organisms 
3. Communication within and among organisms 
Smaller elements are favored because they can form stable covalent bonds. T or F - 
answerTrue. Strong bonds form by significant overlap of atoms, such as carbon and 
hydrogen, allowing them to share electrons. 
What is the bond angle of a...
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CHEM 210 - Biochemistry Exam Questions And Answers (Updated And Verified)
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CHEM 210 - Biochemistry Exam Questions 
And Answers (Updated And Verified) 
What do Biochemists study? - answer1. The relationship between structure and function of 
biomolecules 
2. Chemical reactions of organisms 
3. Communication within and among organisms 
Smaller elements are favored because they can form stable covalent bonds. T or F - 
answerTrue. Strong bonds form by significant overlap of atoms, such as carbon and 
hydrogen, allowing them to share electrons. 
What is the bond angle of a...
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