Atom counting Study guides, Revision notes & Summaries
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CHEM133 Week 11 Lesson 5 Quiz
- Exam (elaborations) • 17 pages • 2023
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6....
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A LEVEL CHEMISTRY EXAM WITH COMPLETE SOLUTIONS alkali - A type of base that dissolves in water forming hydroxide ions, OH- (aq) ions. alkanes - The homologous series with the general formula: CnH2n+2. alkyl group - An alkane with a hydrogen atom remove
- Exam (elaborations) • 42 pages • 2024
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A LEVEL CHEMISTRY EXAM WITH COMPLETE SOLUTIONS 
 
alkali - A type of base that dissolves in water forming hydroxide ions, OH- (aq) ions. 
 
alkanes - The homologous series with the general formula: CnH2n+2. 
 
alkyl group - An alkane with a hydrogen atom removed, e.g. CH3, C2H5; alkyl groups are often shown as 'R'. 
 
amount of substance - The quantity whose unit of the mole. Chemists use 'amount of substance' as a means of counting atoms. 
 
anhydrous - A substance that contains no water mo...
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CHEM133 Week 11 Lesson 5 Quiz (All Correct)
- Exam (elaborations) • 17 pages • 2023
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6.	Q...
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Chem 1311 17F Exam 1 UTD Definitions and trends Questions With Complete Solutions
- Exam (elaborations) • 9 pages • 2023
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Atom correct answer: Smallest quantity of matter that retains the properties of matter. Building blocks of all matter 
 
Element correct answer: A substance made up of a single type of atom. 
 
α Particle correct answer: A positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay or nuclear fission. 
 
β Particle correct answer: High-speed electron, especially emitted in radioactive decay 
 
γ Rays correct answer: high-energy electromagnetic rad...
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CHEM133 Week 11 Lesson 5 Quiz Questions and Answers APU
- Exam (elaborations) • 17 pages • 2023
- Available in package deal
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6....
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CHEM133 Week 11 Lesson 5 Quiz
- Exam (elaborations) • 17 pages • 2023
- Available in package deal
-
- £22.49
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6....
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CHEM 1311 4a Exam Questions with Correct Answers
- Exam (elaborations) • 11 pages • 2023
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CHEM 1311 4a Exam Questions with Correct Answers 
 
What is the hybridization of the nitrogen atom NH3? 
 
a. sp 
b. sp2 
c. sp3 
d. sp3d 
e. sp3d2 - Answer-c. sp3 
 
The valence shell is 
 
a. the highest energy level occupied by electrons 
b. the set of orbitals used to make triple bonds 
c. the orbitals belonging to the entire molecule 
d. the lowest energy level occupied by electrons 
e. the hard covering on crustaceans - Answer-a. the highest energy level occupied by electrons 
 
What is t...
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CHEM133 Week 11 Lesson 5 Quiz
- Exam (elaborations) • 17 pages • 2023
-
- £18.20
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6....
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PHYS 261 Mid Term Exam 2023 Complete
- Exam (elaborations) • 15 pages • 2023
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PHYS 261 Mid Term Exam 2023 Complete. Physiology is the study of A) the facial features as an indication of personality. B) the tissues and organs of the body at the microscopic level. C) growth and reproduction. D) the normal functions of the organ systems. E) the structure of the body. 2) The following is a list of several levels of organization that make up the human body. 1. tissue 2. cell 3. organ 4. molecule 5. organism 6. organ system The correct order from the smallest to the largest is ...
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CHEM133 Week 11 Lesson 5 Quiz
- Exam (elaborations) • 17 pages • 2023
-
- £17.39
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1.	Question: When comparing Be2 and H2: 
2.	Question: Atoms that are sp2 hybridized form ____ pi bond(s). 
3.	Question: The hybridization of the nitrogen atom in the cation NH2+ is: 
4.	Question: Which one of the following molecules has an atom with an incomplete octet? 
5.	Question: Nitrous oxide (N2O) is sometimes called "laughing gas". What is the formal charge on the central nitrogen atom in the most favorable Lewis structure for nitrous oxide based on minimizing formal charge overall? 
6....
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