Chemistry concepts and calculations
117302 questions • Page 2068 / 2347
Why does acetyl chloride (2 carbons with l polar functional group) react with wa
Why does acetyl chloride (2 carbons with l polar functional group) react with water almost violently, but you had to warm and shake the mixture of water and benzoyl chloride (7 ca…
Why does air pressure have to be balanced? Let\'s say you go up on a hill, your
Why does air pressure have to be balanced? Let's say you go up on a hill, your eardrums will pop. I know that this is because the pressure needs to be balanced inside and outside …
Why does benzene undergo substitution reactions, but not addition reactions? Add
Why does benzene undergo substitution reactions, but not addition reactions? Addition reactions destroy the stable aromatic ring of benzene, while substitution reactions preserve …
Why does each metal ion have a different colored flame when heated? The amount o
Why does each metal ion have a different colored flame when heated? The amount of energy released when an electron relaxes is different for each ion. The frequency of the electron…
Why does getting into a bath at 105 degree F feel warmer than showering under a
Why does getting into a bath at 105 degree F feel warmer than showering under a spray of water at 105 degree F? there is a lot of radiation heat transfer in a bath the thermal con…
Why does it make sense for NADH to inhibit all three regulatory steps of the TCA
Why does it make sense for NADH to inhibit all three regulatory steps of the TCA cycle? A.) all of these are correct B.) none of these are correct C.) a high ratio of [NADH/NAD+] …
Why does molecular fluorescence often occurs at a longer wavelength than the exc
Why does molecular fluorescence often occurs at a longer wavelength than the exciting radiation? Loss of energy due to radioactive transitions from an excited vibrational energy l…
Why does my program break in my reverseCopy function saying that it needs a hand
Why does my program break in my reverseCopy function saying that it needs a handled exception to run safely? #include <stdio.h> #define MAX 10 void reverseCopy(int *array1[M…
Why does pi bonding in Cl- give small high spin and CO give larger spin. Answer:
Why does pi bonding in Cl- give small high spin and CO give larger spin. Answer: according to electrochemical series Cl- is week ligand where as CO is strong ligands while filling…
Why does the 13 C NMR show five different types of carbon atoms when the molecul
Why does the 13C NMR show five different types of carbon atoms when the molecular formula indicates the compound contains seven carbon atoms? a. …
Why does the 13 C NMR show five different types of carbon atoms when the molecul
Why does the 13C NMR show five different types of carbon atoms when the molecular formula indicates the compound contains seven carbon atoms? Only the carbon atoms that are attach…
Why does the NaOH solution have to be standardized? The stockroom will sparge (d
Why does the NaOH solution have to be standardized? The stockroom will sparge (displace the CO2 with N2 gas) the distilled water that we use for the preparation of the standard Na…
Why does the addition of 2 molar equivalents of HX to an alkyne yield the gemina
Why does the addition of 2 molar equivalents of HX to an alkyne yield the geminal-dihalide Markovnikov product? Choose the best overall answer. Select one: After the first halogen…
Why does the addition of 2 molar equivalents of HX to an alkyne yield the gemina
Why does the addition of 2 molar equivalents of HX to an alkyne yield the geminal-dihalide Markovnikov product? Choose the best overall answer. Select one: After the first halogen…
Why does the addition of 2 molar equivalents of HX to an alkyne yield the gemina
Why does the addition of 2 molar equivalents of HX to an alkyne yield the geminal-dihalide Markovnikov product? Choose the best overall answer. Select one: After the first halogen…
Why does the addition of an inert gas to an equilibrium mixture of gases not dis
Why does the addition of an inert gas to an equilibrium mixture of gases not disturb the equilibrium? because addition of the inert gas prevents the reaction from occurring in the…
Why does the addition of hydrochloride acid cause the product to precipitate? Wh
Why does the addition of hydrochloride acid cause the product to precipitate? When carrying out therecrystallization of a crude solid reaction product, a cautious chemist will alw…
Why does the cell utilize a nucleotidyl-sugar intermediate during glycogen synth
Why does the cell utilize a nucleotidyl-sugar intermediate during glycogen synthesis? A) The UDP-glucose intermediate serves as a mechanism to sequester a poll of glucose units so…
Why does the check of gender and employee number have to exist in the constructo
Why does the check of gender and employee number have to exist in the constructor in this code? Why can't it just exist in the Set-method? package employee; import java.util.Scann…
Why does the data curve for 0CIVH30+ appear to be so similar to C2H3O2/H3O+? (Ch
Why does the data curve for 0CIVH30+ appear to be so similar to C2H3O2/H3O+? (Choose all responses that are correct.) HC_2H_3O_2 is an organic acid, limiting its interaction with …
Why does the finance industry uses 2TDEA instead of 3TDEA; is there any historic
Why does the finance industry uses 2TDEA instead of 3TDEA; is there any historical reason or technical limitations like the support by HSMs used in the industry? The paper referre…
Why does the first product go through elimination? How do you know what\'s a wea
Why does the first product go through elimination? How do you know what's a weak base/ strong base? When do you have the combination of sn1 and e1 or just elimination? 22. (20 pts…
Why does the initial oxygen binding event cause the oxygen binding curve to hemo
Why does the initial oxygen binding event cause the oxygen binding curve to hemoglobin to be sigmoidal? A) The initial oxygen directly pulls all hemes into a binding-c…
Why does the initial oxygen binding event cause the oxygen binding curve to hemo
Why does the initial oxygen binding event cause the oxygen binding curve to hemoglobin to be sigmoidal? A) The initial oxygen directly pulls all hemes into a binding-c…
Why does the phenyl ring portion of the proton NMR for tirphenylmethanol (synthe
Why does the phenyl ring portion of the proton NMR for tirphenylmethanol (synthesized using bromobenzene and benzophenone via Grignard reactions) integrate to over 17 here rather …
Why does the presence of VOCs lead to the formation of O 3 in the troposphere? S
Why does the presence of VOCs lead to the formation of O3 in the troposphere? Select all that apply. NO reacts with O3 to eliminate it as it is formed. VOCs react with NO more qui…
Why does the pressure of a gas increase when the temperature of the gas is incre
Why does the pressure of a gas increase when the temperature of the gas is increased? Select all that apply. Choose one or more: A. The increase in temperature causes more collisi…
Why does the pressure of a gas increase when the temperature of the gas is incre
Why does the pressure of a gas increase when the temperature of the gas is increased? Select all that apply. The average kinetic energy of the gas increases as the temperature inc…
Why does the rate of reaction increase as the temperature increase? Activation e
Why does the rate of reaction increase as the temperature increase? Activation energy decreases. Activation energy increases The rate constant decreases The rate constant increase…
Why does the rule of thumb \"like dissolves like\" work? \"Like dissolves like\"
Why does the rule of thumb "like dissolves like" work? "Like dissolves like" works because when molecules of solute and molecules of solvent have similar intermolecular forces, mi…
Why does the rule of thumb \"like dissolves like\" work? \"Like dissolves like\"
Why does the rule of thumb "like dissolves like" work? "Like dissolves like" works because when molecules of solute and molecules of solvent have similar intermolecular forces, mi…
Why does the rydberg equation not apply for helium? Is hydrogen or helium a more
Why does the rydberg equation not apply for helium? Is hydrogen or helium a more complicated spectrum? Also can scientists determine specific elements based off a spectrum? Why do…
Why does the solubility increase when you add HCl and ammonia but decrease when
Why does the solubility increase when you add HCl and ammonia but decrease when you add NaOH? b. For each of the following, circle the correct answer to indicate how the solubilit…
Why does the stability of a base (in an acid base rxn)increase as the size of at
Why does the stability of a base (in an acid base rxn)increase as the size of atom that the Hydrogen is attached toincrease. I undersatand that the electron is found over a larger…
Why does the temperature rise slightly immediately after crystallization begins
Why does the temperature rise slightly immediately after crystallization begins in a substance that is being cooled? Crystallization is an exothermic process, so as a substance cr…
Why does the temperature rise slightly immediately after crystallization begins
Why does the temperature rise slightly immediately after crystallization begins in a substance that is being cooled? Crystallization is an exothermic process, so as a substance cr…
Why does the uncertainty principle make it impossible to predict a trajectory fo
Why does the uncertainty principle make it impossible to predict a trajectory for the electron? Why does the uncertainty principle make it impossible to predict a trajectory for t…
Why does this chelating agent, that doesnt bind the necessary cofactor, slow dow
Why does this chelating agent, that doesnt bind the necessary cofactor, slow down the reaction slightly compared to the control (with no chelating agent)? We measured the absorban…
Why does this code print \"bye\" first and then \"Hello 1\" 3 times. I do not un
Why does this code print "bye" first and then "Hello 1" 3 times. I do not understand why it goes in reverse, please explain. #include <iostream> void what(int[ ], int); usin…
Why doesn\'t the presence of other metal ions from the dissolved brass sample in
Why doesn't the presence of other metal ions from the dissolved brass sample interfere with the quantitative analysis of copper in this experiment? Select the number for the answe…
Why don\'t all the disaccharides undergo fermentation with yeast? How can the io
Why don't all the disaccharides undergo fermentation with yeast? How can the iodine test be used to distinguish between amylose and glycogen? The Benedict's test of a carbohydrate…
Why don\'t real gases behave ideally at very low temperatures? In Part A, what i
Why don't real gases behave ideally at very low temperatures? In Part A, what is the pressure of the air inside the flask? Can we assume this pressure is constant throughout the e…
Why don\'t we observe the deBroglie wavelength of everyday macroscopic objects (
Why don't we observe the deBroglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? Answer The wavelength is too small relative to the size …
Why don\'t we record the exact mass of potassium iodide used in the titrations?
Why don't we record the exact mass of potassium iodide used in the titrations? If 1.0120 g of potassium iodate were used to make the 500.0 mL solution, what is the molarity of pot…
Why dose glucose not undergo spontaneous oxidation at a significant rate? A- the
Why dose glucose not undergo spontaneous oxidation at a significant rate? A- the activation energy is too large B- the deltaG is positive for the reaction C- the activation energy…
Why i having this error using opengl C++ here part of code #include \"glaux.h\"
Why i having this error using opengl C++ here part of code #include "glaux.h" #include "glut.h" #include <stdio.h> #include <stdlib.h> #include <conio.h> #define…
Why in one of my lab procedures. I was told to add 6m HNO3 until acidic to litmu
Why in one of my lab procedures. I was told to add 6m HNO3 until acidic to litmus to test for silver (formation of white ppt). Why UNTIL acidic to litmus? Why can't it just be 1 d…
Why in one of my lab procedures. I was told to add 6m HNO3 until acidic to litmu
Why in one of my lab procedures. I was told to add 6m HNO3 until acidic to litmus to test for silver (formation of white ppt). Why UNTIL acidic to litmus? Why can't it just be 1 d…
Why in the cis-alkene reaction both methyl groups are represented by two wedges
Why in the cis-alkene reaction both methyl groups are represented by two wedges and the H are represented by two hatches why in trans-alkene CH3 and H are alternatively in the for…
Why in the cis-alkene reaction both methyl groups are represented by two wedges
Why in the cis-alkene reaction both methyl groups are represented by two wedges and the H are represented by two hatches why in trans-alkene CH3 and H are alternatively in the for…
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