Halogens Study guides, Revision notes & Summaries
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Things to Memorize for IB Chem HL 100% Correct
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Things to Memorize for IB Chem HL 
 
100% Correct 
 
Percentage Yeild actual yield/theoretical yield x 100 
 
Avogadro's Law for gases One mole of any gas occupies 22.7 L at STP 
 
Ideal Gas Law PV=nRT (n is equal to the number of moles of the substance and R is the gas 
constant 0.082 or 8.314) 
 
Molarity equation moles of solute/liters of solution 
 
Dilution M1V1=M2V2 
 
Hydrogen Emission Spectrum Color lines indicate the wavelengths of light that are released 
 
Balmer series A set of spec...
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Test Bank For Foundations of College Chemistry 14th Edition Hein
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Package Title: Hein Test Bank 
Course Title: Hein 14e 
Chapter Number: 3 
 
 
Question type: Multiple Choice 
 
 
1) All matter is composed of elements. Approximately how many elements are there? 
 
a) 4 
b) 10 
c) 68 
d) 100 
 
Answer: D 
 
Difficulty: easy 
Learning Objective 1: Define an element and write the chemical symbol for an element when given its name. 
Section Reference 1: Section 3.1 
 
 
2) The smallest particle of an element that can exist is called a(n) ___. 
 
a) atom 
b) ferrul...
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ACS GEN CHEM 1 FINAL EXAM 2023 WITH 100% CORRECT ANSWERS
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the physical material of the universe. It is anything that has mass and occupies space. - correct answer Matter 
 
is made up of relatively few elements. - correct answer Matter 
 
The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - correct answer Atom 
 
Each _______ is made of the same kind of atom - correct answer Element 
 
Combination of atoms held together in specific shapes - correct answer Molecule 
 
No fixed...
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OCR 2023 Chemistry A H032/01: Breadth in chemistry AS Level Question Paper & Mark Scheme (Merged)
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OCR 
2023 
Chemistry A 
H032/01: Breadth in chemistry 
AS Level 
Question Paper & Mark Scheme 
(Merged) 
Please Review and leave your Rating 
stars…. 
Please write clearly in black ink. Do not write in the barcodes. 
Centre number Candidate number 
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Oxford Cambridge and RSA 
Tuesday 16 May 2023 – Morning 
AS Level Chemistry A 
H032/01 Breadth in chemistry 
Time allowed: 1 hour 30 minutes 
* 
INSTRUCTIONS 
• Use black ink. You can use an HB pencil, but only for gra...
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MMBIO 221 Exam 2 Robison Study Guide Latest Questions With Solved Correctly Answers!!
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Disinfection - destruction of vegetative pathogens; usually on inanimate objects. 
Antiseptic - agent which prevents bact. contamination and growth; usually on living tissue. 
Which agent doesn't necessarily work better at higher concentrations? - Alcohol, 70% (goldie lock 
zone)(60-80% most effective) 
(Ethyl and Isopropyl) 
-Alcohol is very effective to resistant to inactivation by organic materials (halogens are not good at this) 
Name the factors that affect a disinfectant activity. - -Cont...
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TTU Chem 1305 Final Exam Questions With All Correct Answers!!
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Periods - Answer-left to right-gradual change 
Groups - Answer-up and down-super similar 
Alkali Metals - Answer-Group 1: Very reactive with H2O 
Usually only form one bond 
Alkaline-Earth Metals - Answer-Group 2: More stable than group 1 
usually form 2 bonds 
Transition Metals - Answer-Group 3B-2B: Can make any number of bonds 
Bond like Group 1 & Group 2 
Halogens - Answer-Group 7: Can only make one bond 
Noble Gases - Answer-Group 8: Nonreactive and can't make bonds 
Atomic Status - Answer-...
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Chemistry 101 Exam 1 WSU Questions and Answers Already Passed
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Chemistry 101 Exam 1 WSU Questions 
 
and Answers Already Passed 
 
How many electrons can an orbital hold? 2 
 
How many electrons does the second shell (n=2) hold? 8 
 
How many electrons does the third shell (n=3) hold? 18 
 
What do like charges do? Like charges (positive-positive or negative-negative) repel each 
other 
 
What is the generic valence level electron configuration for the halogens (group 7A)? ns2np5 
 
What is the generic valence level electron configuration for the alkali met...
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ACS GEN CHEM 1 FINAL QUESTIONS WITH 100 % CORRECT ANSWERS | VERIFIED
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the physical material of the universe. It is anything that has mass and occupies space. - Matter 
is made up of relatively few elements. - Matter 
The smallest building block of matter. Smallest particle that retains the chemical property of the 
element (O, He, S). - Atom 
Each _______ is made of the same kind of atom - Element 
Combination of atoms held together in specific shapes - Molecule 
No fixed volume or shape, conforms to 
volume and shape of container, is compressible - Gas 
Individua...
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SCIN 130 Quiz 2. Questions and Answers. American Public University
- Exam (elaborations) • 23 pages • 2022
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Part 1 of 7 - Chapter 2 27.0 Points 
Question 1 of 31 
3.0 Points 
What is the attraction between water molecules and other molecules, allowing water to 
“climb up a straw,” for example? 
 
A. cohesion 
 
B. surface tension 
 
C. solvent 
 
D. adhesion 
 
E. covalent bond 
Feedback:Great job. 
Question 2 of 31 
3.0 Points 
What are the monomers that make up proteins? 
. 
 
A. steroids 
 
B. amino acids 
 
C. oils 
 
D. DNA 
Feedback:Great job. 
Question 3 of 31 
3....
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Chem 1311- Exam 2 (Chapters 4,10,5) Questions With Complete Solutions
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Types of Electrolytes: correct answer: -strong: SOLUBLE & IONIC 
-weak: SOLUBLE & MOLECULAR 
-non-electrolytes: INSOLUBLE 
 
Solubility Rules correct answer: 1. Group 1A Metals (Li+, Na+, K+, etc.) 
2. Ammonium (NH4+) 
3. Nitrate (NO3-) 
4. Acetate (C2H3O2-) or (CH3COO-) 
5. Hydrogren Carbonate (HCO3-) 
6. Chlorate (ClO3-) 
7. Perchlorate (ClO4-) 
8. Halogens (Cl-, Br-, I-) EXCEPT W/ (Ag+, Pb2+, Hg2^2+) 
9. Sulfate (SO4^2-) EXCEPT W/ (Ag+, Pb2+, Ca2+, Sr2+, Ba2+) 
 
Insolubility Rules correct ...
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