Halogens Study guides, Class notes & Summaries
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CHMM Test Contents- Study Guide questions with correct answers
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General Properties of Organic Compounds CORRECT ANSWER - Melt and boil at lower temperatures 
- As # C's and the MW increase, BP/MP increase 
- Flammable, unstable, especially triple bonds 
- Triple bonds can: Polymerize, Spontaneously react with, Oxygen, Explode. Keep triple bonds away from: Heat & Oxygen/Oxidizers 
- Presence of halogens increases stability 
- Many are water in-soluble i.e. they sink such as CCl4, MeCl2, PCBs etc 
- Some are polar if they contain hetero oxygen atom such as k...
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HESI A2 CHEMISTRY EXAM 2024 WITH 100% CORRECT ANSWERS
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Mixture with uniform density throughout and no distinguishable coponents.Answer - Homogeneous Mixture 
 
Mixture in which the components are readily distinguished.Answer - Heterogeneous Mixture 
 
A change in which the checmical composition of a substance remains the same.Answer - Physical Change 
 
A change in which the chemical bonds are broken and reformed to create a new and different substance.Answer - Chemical Change 
 
The simplest of substances and is represented by a specific letter...
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CHMM Test exam 2023 with 100% correct answers
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General Properties of Organic Compounds - correct answer - Melt and boil at lower temperatures 
- As # C's and the MW increase, BP/MP increase 
- Flammable, unstable, especially triple bonds 
- Triple bonds can: Polymerize, Spontaneously react with, Oxygen, Explode. Keep triple bonds away from: Heat & Oxygen/Oxidizers 
- Presence of halogens increases stability 
- Many are water in-soluble i.e. they sink such as CCl4, MeCl2, PCBs etc 
- Some are polar if they contain hetero oxygen atom such ...
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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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URI CHM 103 EXAM 1 LATEST UPDATE GRADED A+
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URI CHM 103 EXAM 1 LATEST UPDATE 
GRADED A+ 
**What is density?** 
 Density is calculated as mass divided by volume. 
**How do you calculate percent error?** 
 Percent Error = ((Theory - Actual) / Theory) × 100% 
**What does percent accuracy measure?** 
 Percent Accuracy = (Actual / Theory) × 100% 
**Which elements are halogens?** 
 Halogens include F, Cl, Br, I, and At. 
**Define molecular weight.** 
 Molecular Weight is the sum of atomic weights. 
**What is the formula for calculating atomic...
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Honors Chemistry ELEMENTS QUIZ 100% Pass
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Honors Chemistry ELEMENTS QUIZ 
 
100% Pass 
 
What is the term for the substance that cannot be broken down into simpler substances by 
chemical reactions? 
 
 Element 
 
What is the name of the element with the chemical symbol "O"? 
 Oxygen 
 
What is the term for the elements in Group 18 of the periodic table, known for their lack of 
reactivity? 
 Noble Gases 
 
What is the name of the element with the chemical symbol "Fe"? 
 Iron 
 
What is the term for the elements that are good conduc...
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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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Texas 4-8 science exam 2024/2025 with 100% correct answers
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according to their reactivity with other substances correct answerschemicals should be stored 
 
at the bottom of meniscus correct answerswhere do you read the measurement of a graduated cylinder 
 
hypothesis correct answerseducated guess 
 
renewable resources correct answersrenew or replace in short timescale for human use again 
 
non-renewable resources correct answersrenew or replace in long timescale where humans can't use again 
 
so far away from planet they cant feel the gravity corre...
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IAHCSMM Test Questions and Correct Answers
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Items that are introduced directly into the bloodstream or other normally sterile areas 
of the body are classified as 
~ Critical items 
The process by which all forms of microorganism are completely destroyed is called 
~ Sterilization 
Iodophors are a member of this disinfectant family 
~ Halogens 
Phenolic are classified as 
~ Intermediate to low-level disinfection 
How long must alcohol remain in wet contact with an item to achieve a reasonable 
level of disinfection 
~ 5 minutes 
Which o...
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GCSE Chemistry Paper Final Exam Fully Solved 100% 2024.
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What is an atom? - Answer Smallest part of an element that can exist 
 
What is an element? - Answer A substance made up of one type of atom 
 
How are elements represented? - Answer Using symbols, in the periodic table 
 
Approximately how many elements are there? - Answer 100 
 
What is a compound? - Answer A substance made up of two or more elements chemically combined in fixed proportions 
 
How are the elements in a compound separated? - Answer By chemical reaction 
 
How are ch...
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