rank the following alkyl halides in order of their increasing rate of reaction with triethylamine: iodoethane 1-bromopropane 2-bromopropane
Answers
The rate of reaction of alkyl halides with triethylamine increases with the electron-releasing effect of the halide group, which increases in the order - Iodoethane < 1-bromopropane < 2-bromopropane.
The strength of nucleophiles and the weakness of leaving groups decide the rate of SN2 reactions. This is what determines the reactivity of alkyl halides.
Alkyl halides are classified as primary, secondary, or tertiary based on the number of carbons that the halogen is bonded to. Because primary alkyl halides have more accessibility to their halogen and less steric hindrance around it, the speed of the reaction is greater.
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Related Questions
What are balancing equations and explain the conservation of mass?
Answers
Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.
Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions
Name the nutrient present in cooked rice , a boiler eggs
Answers
Explanation:
cooked rice
nutrient
carbohydrate.
Boiler eggs
nutrient
Protein.
True or Flase: dissolving salt in distilled water creates a homogeneous mixture.
Answers
Answer:
true
Explanation:
Answer:
true
Explanation:
because the dissolved salt is evenly distributed throughout
1. Diversas industrias metalúrgicas operan en base al derretimiento de los metas en grandes hornos industriales, para poder darles forma o hacer aleaciones. que tipo de estado es
Answers
Answer: liquid state. (Estado liquido)
Explanation:
I will answer in English.
When you want to give a shape to a metal, the best option is using metal in liquid state (because as you know, the liquids take the shape of the container where they are in).
So the industries heat the metals until the metals reach the fusion point (so they change of phase, from solid to liquid)
Then the liquid metal is placed in a special container with the wanted shape.
1. How many molecules are in 2.40 moles of H2O?
Answers
Answer:
There arr 1.5*1024 molecules in 2.40 moles of H2O.
1.
Calculate the frequency (v) of a wave whose wavelength (X) is 5.89 x 108
m. Remember Einstein proposed the speed of light (c) = 3.00 X 10m/s.
C=Xv
Answers
Explanation:
C = Xv
v = C/X = (3.00 * 10^8 m/s) / (5.88 * 10^8 m)
= 0.51 Hz.
What is the difference between fission and fusion? What are some problems to overcome with each?
Answers
Answer:
Explanation:
The main difference between these two processes is that fission is the splitting of an atom into two or more smaller ones while fusion is the fusing of two or more smaller atoms into a larger one.
Fission means splitting 1 atom into more atom
Fusion means Combination of 2 atom or more atom.
What does this image represent?
A. Linear molecule with one domain
B. Linear molecule with two domains
C. Tetrahedral molecule with four domains
D. Trigonal planar molecule with three domains
Answers
Answer: A.
Explanation:
Answer:
A. Linear molecule with one domain.
Hope this helps! :)
Explanation:
two chemical test that can be used to differentiate propanol from propanoic acid
Answers
Propanal will form silver mirror upon heating with Tollen's reagent while propanoic acid will not respond.
What are the periodic trends of ionic radii? Check all that apply. Ionic radii tend to increase down a group. Ionic radii tend to decrease across a period. Anionic radii tend to increase across a period. Cationic radii tend to decrease across a period. Ionic radii increase when switching from cations to anions in a period.
Answers
Answer:
What are the periodic trends of ionic radii? Check all that apply.
*Ionic radii tend to increase down a group.
Ionic radii tend to decrease across a period.
Anionic radii tend to increase across a period.
*Cationic radii tend to decrease across a period.
*Ionic radii increase when switching from cations to anions in a period.
Answer:
- Ionic Radii Tend To Increase Down A Group.
- Cationic Radii Tend To Decrease Across A Period.
- Ionic Radii Increase When Switching From Cations To Anions In A Period.
Explanation:
i got it correct on edge
Most of the energy that drives the water cycles comes from which of the following?
O The sun
O Earth's core
O Earth's oceans
O The equator
Answers
bc water is necessary to sustaining life on Earth, and helps tie together the Earth's ... The ocean plays a key role in this vital cycle of water.
The heat of fusion of a compound is 333.6 joules per gram. What is the total number of joules of heat that must be absorbed by a 15.0-gram sample to change the
compound from solid to liquid at its melting point?
Answers
The total number of joules of heat that must be absorbed is 5004 J
Data obtained from the questionFrom the question given above, the following data were obtained:
Heat of fusion (Hf) = 333.6 J/gMass (m) = 15 gHeat (Q) =? How to determine the heatThe heat that must be absorbed by the sample to change it from solid to liquid at its melting point can be obtained as follow:
Q = m × Hf
Q = 15 × 333.6
Q = 5004 J
Thus, 5004 J of heat must be absorbed.
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What molecules are used to build the sugar in photosynthesis?
Group of answer choices
water
carbon dioxide
oxygen
none of these
Answers
Answer:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Explanation:
it is the full concept. I think it will help you.
F it takes 0.0500 l of oxygen gas kept in a cylinder under pressure to fill a 4.00 l vessel in which the pressure is 0.980 atm, what was the initial pressure of the gas in the cylinder
Answers
Answer:
0.012atm pressure
Explanation:
pressure is inversly proportional to volume. Mathematically,
V1/P1=V2/P2
Petunia needs 66.48 grams of potassium hydroxide (KOH) to run a reaction in class. How many moles of potassium hydroxide does she need? Please round your answer to two digits after the decimal point, and remember to include correct, complete units (including substance formula).
Answers
Answer:
She needs 1.19 moles of potassium hydroxide.
Explanation:
Being the molar mass of the elements:
K= 39 g/moleO= 16 g/moleH= 1 g/molethen the molar mass of potassium hydroxide is:
KOH= 39 g/mole + 16 g/mole + 1 g/mole= 56 g/mole
Being the mass of one mole of a substance, which can be an element or a compound, you can apply the following rule of three: if 56 g of KOH are present in 1 mole, 66.48 g of KOH in how many moles of the compound are they?
\(moles of KOH=\frac{66.48 grams*1 mole}{56 grams}\)
moles of KOH= 1.19
She needs 1.19 moles of potassium hydroxide.
What is the sum of the coefficients needed to balance the combustion reaction of methane?
Answers
Answer: The sum of the coefficients needed to balance the combustion reaction of methane is 6.
Explanation:
Combustion is a chemical reaction in which hydrocarbons are burnt in the presence of oxygen to give carbon dioxide and water.
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The chemical equation for combustion of methane will be :
\(CH_4+2O_2\rightarrow CO_2+2H_2O\)
The coefficient foer methane is 1 , 2 for oxygen , 1 for carbon dioxide and 2 for water. The sum is 6.
Which is not an example of silicate minerals?Examples include gold (Au), silver (Ag), platinum (Pt), sulfur (S), copper (Cu), and iron (Fe). Diamond and graphite are also native element minerals, both composed entirely of carbon.
Answers
Silicate minerals are a class of minerals that contain silicon and oxygen as their main components, along with other elements such as aluminum, calcium, magnesium, and iron. They are the most abundant minerals on Earth and make up the majority of the Earth's crust.
Some examples of silicate minerals include quartz, feldspar, mica, and olivine. Gold, silver, platinum, sulfur, copper, and iron are not examples of silicate minerals because they do not contain silicon and oxygen as their main components. Instead, they are classified as native element minerals, which means they are composed of only one element or compound.
Diamond and graphite are also native element minerals, both composed entirely of carbon.
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how do stars generate energy??
Answers
Answer:
The energy source for all stars is nuclear fusion. Stars are made mostly of hydrogen and helium, which are packed so densely in a star that in the star's center the pressure is great enough to initiate nuclear fusion reactions. In a nuclear fusion reaction, the nuclei of two atoms combine to create a new atom.
For a reaction carried out at 25∘C
with an equilibrium constant of 1×10−3,
to increase the equilibrium constant by a factor of 10: a. how much must ΔG∘
change? b. how much must ΔH∘
change if ΔS∘=0kcalmol−1K−1?
c. how much must ΔS∘
change if ΔH∘=0
kcal mol −1?
For a reaction carried out at 25∘C
with an equilibrium constant of 1×10−3,
to increase the equilibrium constant by a factor of 10:
a. how much must ΔG∘
change?
b. how much must ΔH∘
change if ΔS∘=0kcalmol−1K−1?
c. how much must ΔS∘
change if ΔH∘=0
kcal mol −1?
Answers
To increase the equilibrium constant (K) of a reaction by a factor of 10, the change in Gibbs free energy (ΔG°) must decrease by approximately 5.708 kcal/mol. Whereas, the change in entropy (ΔS°) must increase by approximately 14.15 J/mol K.
This can be achieved by adjusting the reaction conditions or altering the concentrations of reactants and products.
If the change in entropy (ΔS°) is zero and the equilibrium constant of a reaction at 25°C is increased by a factor of 10, the change in enthalpy (ΔH°) must change by approximately 1.364 kcal/mol.
This implies a shift in the energy balance of the reaction, which can be influenced by adjusting temperature or introducing catalysts.
If the change in enthalpy (ΔH°) is zero and the equilibrium constant of a reaction at 25°C is increased by a factor of 10, the change in entropy (ΔS°) must increase by approximately 14.15 J/mol K.
This suggests that the reaction becomes more disordered or has an increased number of possible microstates, leading to a higher entropy value.
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You put some drinks out on your back step to get cold on a winter day. You leave them outside quite a long time. You notice the bottles of water you put out are frozen solid but the bottles of clear soda which are the same volume are not frozen. Why did the water freeze when the soda did not?
Answers
The difference between a conjugate acid/base pair is
+
o the conjugate acid
o the conjugate base
O one proton
one OH-
Answers
Answer:
hola no ablo inglés porfavor
MARKING BRAINLIEST :)
Which property has a trend similar to that of electronegativity?
A. First ionization energy
B. Atomic radius
C. Ionic radius
D. Atomic mass
Answers
Answer:
a
Explanation:
There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, the correct option is option A.
What is periodic table?Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.
Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet.
Along period, electronegativity increases. along group electronegativity decreases. The same trend is followed by first ionization energy in periodic table.
Therefore, the correct option is option A.
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An important secondary structures of proteins, the _______ forms hydrogen bonds with residues on a nearby strand when the protein folds.Question 10 options: β-pleated sheet random coil α-helix primary structure
Answers
In this case, the primary structure forms hydrogen bonds to fold itself.
The answer is primary structure.
I need help with my chemistry homework
Answers
Speed in excess of 100 km/h, which is 208.8 km / h
Further explanationLinear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration
• An equation of uniformly accelerated motion
\(\large {\boxed {\bold {x=xo+vo.t+\frac {1} {2} at ^ 2}}}\)
vt = vo + at
vt² = vo² + 2a (x-xo)
x = distance on t
vo / vi = initial speed
vt / vf = speed on t / final speed
a = acceleration
I think it's not chemistry but physics
KnownΔx = 290 m
vf = 0⇒stop
Δt = 10 s
We use the formula in the question
\(\tt \Delta x=\dfrac{1}{2}(vf+vi)\Delta t\\\\290=\dfrac{1}{2}(0+vi).10\\\\vi=58~m/s=\boxed{\bold{208.8~km/h}}\)
5 Why is it useful to organize the data on a graph? Explain your answer.
Answers
Answer:
Hey mate.....
Explanation:
This is ur answer....
Charts, tables, and graphs help communicators organize that data in a way that helps their audiences understand the story the data tells and, hopefully, interpret it correctly.
Hope it helps!
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If an object does Not explode, catch fire, or dissolve, how would you describe this object? (Three answers)
Answers
Non-combustible
eg:-glass,water,stone, Portland cement etc ...
Answer:
Noncombustible
Explanation:
Not explode means no blastsCan't catch fire hence no combustionnot dissolve means not reacts with H and OSo
Some examples are ,glass ,stone
A chemist adds 0.43 L of a 0.0463 g/L magnesium fluoride (MgF₂) solution to a flask. Calculate the mass in grams of magnesium fluoride the chemist has added to the flask. Round your answer to 2 significant digits.
Answers
Answer:
C=m/V
so m=C*V
0.43*0.0463= 0.020g
Explanation:
The more massive star will always be closer to the center of gravity in a binary start. True or false?
Answers
Answer:
True
Explanation:
Hope it helped!
Which of the following is not a fundamental particle
2) Neutron
1) Proton
3) a-particle
4) Electron
Answers
3)a-particle.
How many electrons would Boron with a +2 charge have?
Answers
5 electrons
Boron atomic number 5 has five electrons in its ground state.
Commonly Boron will lose 3 electrons leaving 2 electrons in its most common ionic form.
Explanation:
The atomic number gives the number of protons. Protons which have a positive charge are balanced by an equal number of electrons in a neutral atom.
Boron number 5 has five protons and therefore as a neutral atom also has five electrons.
Boron has an electron configuration of
1s22s22p1
The most stable electron configuration for Boron is
1s2
+ 3 charges. By losing three electrons Boron can achieve the stable electron structure of Helium
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