Answers
alcohols are compounds that contain hydroxyl groups (-OH). Substances are called ketones if they contain a carbonyl group (C=O) in the center of a hydrocarbon chain.
Hydroxyl groups (OH) are functional groups consisting of an oxygen atom bonded to a hydrogen atom, typically found on the surface of molecules. They are a type of reactive hydrophilic group, meaning they are attracted to water and will react with other molecules in aqueous solutions to form hydrogen bonds. Hydroxyl groups are important components of many biological molecules, including proteins, carbohydrates, DNA, and lipids. They are also found in many drugs and play a role in drug metabolism.
Carbonyl groups (C=O) are functional groups consisting of a carbon atom double-bonded to an oxygen atom. They are found in many organic compounds, including aldehydes, ketones, carboxylic acids, amides, and esters. Carbonyl groups are highly reactive and undergo a variety of reactions, including nucleophilic addition, reduction, and oxidation reactions. They also play an important role in biological processes, such as photosynthesis and respiration.
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Related Questions
How do the varying characteristics of Earth's atmospheric layers affect the types of wavelengths that are reflected back into space, absorbed or allowed to pass to Earth's surface?
Answers
The specific characteristics of the layers that make up the Earth's atmosphere affect the types of wavelengths that are reflected. Troposphere, stratosphere, and mesosphere are the three layers.
The stratosphere, which contains the ozone layer, is the next layer. The sun's dangerous UV light is absorbed by ozone, keeping it from reaching the surface of the Earth. Visible light and some infrared radiation can travel through this layer.
The mesosphere is located above the stratosphere, where the majority of meteoroids burn up as they enter the atmosphere of the Earth.
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A ball with a mass of 5.0 kg is lifted off the floor at a height of 1.72m. What is its
potential energy? Include the appropriate units for full points.
Answers
The potential energy is 84.366 J.
We know that, potential energy is PE= mgh
PE= 5.0 * 9.81 * 1.72
PE= 84.366 J
Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases. If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy. It is capable of performing more work when raised. Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the elevated ball has more potential energy as they become further apart.
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In site-directed mutagenesis experiments, Gly is often successfully substituted for Val, but Val can rarely substitute for Gly. Explain
Answers
The success of Glycine substitutions for Valine and the difficulty of Valine substitutions for Glycine in site-directed mutagenesis experiments can be explained by the differences in the physical properties of these two amino acids and their effects on protein structure.
Why is Glycine (Gly) often substituted for Valine (Val)?The reason why Glycine (Gly) can often be substituted for Valine (Val) in site-directed mutagenesis experiments, but Valine cannot easily substitute for Glycine, has to do with the properties of these two amino acids and their effects on protein structure.
Glycine is the smallest amino acid and lacks a side chain, which means it has a very flexible backbone that can adopt multiple conformations. This flexibility allows it to occupy positions in a protein that are too constrained for larger amino acids like Valine, which has a larger side chain that restricts its conformational flexibility.
On the other hand, Valine is a branched, non-polar amino acid with a bulkier side chain compared to Glycine. This bulkiness makes it difficult for Valine to fit into positions in a protein where space is limited, such as tight turns or bends in the protein backbone.
Therefore, when Glycine is substituted for Valine, the resulting protein can still maintain its proper folding and function because the smaller, more flexible Glycine can occupy the space previously occupied by Valine. However, when Valine is substituted for Glycine, the bulkier Valine side chain cannot fit into the space previously occupied by Glycine, leading to steric clashes and disrupted protein structure.
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Stephan’s mother cuts a twig from a rose bush and plants it in the soil. After a few days, Stephan observes a new plant growing. Which characteristic does the growth of the new plant depict?
Answers
The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.
Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.
The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.
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2. Show the calculation supporting the claim that atmospheric pressure near sea level corresponds to the pressure exerted by a column of mercury that is about 760 mm high. Considering the density of mercury = 13.6 g/cm³.
Answers
The pressure exerted by a column of mercury that is about 760 mm high corresponds to approximately 0.987 atm.
To calculate the pressure exerted by a column of mercury, we can use the formula:
Pressure = density * gravity * height
Given:
Density of mercury = 13.6 g/cm³
Height of the mercury column = 760 mm = 76 cm
Acceleration due to gravity = 9.8 m/s²
First, we need to convert the height of the mercury column from centimeters to meters:
Height = 76 cm * (1 m / 100 cm) = 0.76 m
Now, we can calculate the pressure:
Pressure = 13.6 g/cm³ * 9.8 m/s² * 0.76 m
To ensure consistent units, we need to convert the density from grams per cubic centimeter (g/cm³) to kilograms per cubic meter (kg/m³):
Density = 13.6 g/cm³ * (1 kg / 1000 g) * (1 cm³ / (1e-6 m³))
Density = 13600 kg/m³
Plugging in the values into the pressure formula:
Pressure = 13600 kg/m³ * 9.8 m/s² * 0.76 m
Pressure = 99992.8 Pa
We can express the pressure in terms of atmospheric pressure:
1 atm = 101325 Pa (approximately)
To compare the pressure with atmospheric pressure, we can convert 99992.8 Pa to atm:
Pressure in atm = 99992.8 Pa / 101325 Pa/atm
Pressure in atm ≈ 0.987 atm
The pressure exerted by a column of mercury that is about 760 mm high corresponds to approximately 0.987 atm. Since atmospheric pressure near sea level is approximately 1 atm, this calculation supports the claim that atmospheric pressure near sea level is equivalent to the pressure exerted by a column of mercury about 760 mm high.
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Jill likes to watch her dad cook. First, he puts liquid raw eggs in a hot pan, and the eggs get stiff. Then, he adds solid cheese to the pan and the cheese gets gooey.
The changes in the eggs and cheese illustrate that
A.
different substances can have different densities.
B.
different substances can have different volumes.
C.
different substances can react differently to heat.
D.
different substances can react differently to light.
Answers
Answer: c
Explanation:
different substances can react differently to heat.
Answer: c
Explanation:
different substances can react differently to heat.
Which energy output object(s) work with the solar panel?
A. fluorescent light bulb
B. fan
C. water heater
D. incandescent light bulb
Answers
Fan and water heater are the energy output object(s) work with the solar panel. Therefore, option B and C are correct.
What is solar panel ?Solar panels are devices that capture the sun's rays and convert them into electricity or heat. A solar panel is a collection of solar (or photovoltaic) cells that can be used to generate electricity via the photovoltaic effect.
Once you've determined the voltage and amperage, all you have to do is multiply them. The wattage of your solar panel output should be similar to the solar panel rating as a result.
Thus, option B and C are correct.
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8.00 g of C,H, has how many H atoms?
Answers
The correct answer is 3.68 × 10^23 atoms.
The Avogadro's number is the number of constituent particles—typically molecules, atoms, or ions—that make up a mole of a substance. The relationship between the molar mass of a substance and the mass of a sample is determined by its proportionality. In the International System of Units, it has the symbol NA or L and a value of 6.022140857 × 10^23 mol^-1 (SI).
Weight of C6H6 = 8 gram
C6H6 Molar mass is = 78 gram/mole
Mole of C6H6 = 8 / 78 mole
= 0.102 mole C6H6
Mole of C6H6 = No. of C6H6 molecule / Avagadro number
0.102 × 6.03 × 10^23 = No of C6H6 molecule
Here 6 atoms in C6H6 molecule so
No. of H atoms in C6H6 = 0.102 × 6.03 × 10^23
= 3.68 × 10^23 atoms
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What is density?
A.The volume of an object.
B.The weight of an object.
C.The measure of mass of a material within a given space.
D.The mass of an object.
+11 points
Answers
Answer:
C.The measure of mass of a material within a given space.
Explanation:
C. The measure of mass of a material within a given space.
Caesium is in period 6 group 1. Would you expect caesium to have a higher or lower melting point than rubidium? give a reason for your answer
Answers
Answer:
A higher melting point than rubidium
Explanation:
Since Caesium has very strong bond btwn atoms hence requires high energy to break causing it to have a high melting point than rubidium
Answer:
Caesium would have a lower than Rubidium.
Explanation:
The reason is the periodic order.
If the sun rises at 7:36am and sets at 6:00pm, what times would we use for our data in the 24-hour clock format?
A.
sunrise: 0736
sunset: 1600
B.
sunrise: 0736
sunset: 0600
C.
sunrise: 0736
sunset: 1800
D.
sunrise: 1936
sunset: 0600
E.
None of the above.
Answers
What was one important discovery that the Curies made?
O A material's radioactivity cannot be changed by altering the material physically
O A material's radioactivity can be weakened or intensified by changing it chemically.
O Radioactive materials generally contain radium or polonium.
O Radioactive materials are found only in the form of salts.
Answers
Answer:
C is the answer to your question
Calculate the pH if [H+] = 2.79 x 10^-11 M
Answers
Answer:
10.6.
Explanation:
What is given?
[H⁺] = 2.79 x 10⁻¹¹ M.
Step-by-step solution:
Let's see the formula of pH:
\(pH=-\log_{10}[H^+]=-\log_{10}[H_3O^+].\)Where [H⁺] is the proton concentration in M. So we have to replace the given data in the formula:
\(pH=-\log_{10}{}\lbrack2.79\cdot10^{-11}]=10.55\approx10.6.\)The pH of a [H⁺] = 2.79 x 10⁻¹¹ M solution would be 10.6.
Question 3 (1 point)
Resistance is the slowing of the flow of electrons and where some of the electrical
energy is converted into heat.
Lesson 5.03
True
False
Answers
Answer:
False
Explanation:
The given statement stating that resistance is the slowing of the flow of electrons and where some of the electrical energy is converted into heat is true and it is a opposite of conduction.
What is conduction?
Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.
In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules .
When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state conduction 2) transient conduction.According to the type of energy conduction is of three types:
1) heat conduction
2) electrical conduction
3)sound conduction
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Convert 4752 meters into miles
Answers
Answer:
2.935 miles
Explanation:
because when you convert feet into miles, it all adds up
which of the following is the most stable carbocation? each line-angle structure contains a ring with six vertices. A. structure 1 has a ch3 group at the first vertex and a positive charge at the fourth (clockwise) ring vertex. B. structure 2 has a ch3 group at the first vertex and a positive charge at the third ring vertex. C. structure 3 has a ch3 group at the first vertex and a positive charge at the second ring vertex. D. structure 4 has a ch3 group at the first vertex and a positive charge at the first ring vertex. E. structure 5 has a ch2 plus group at the first ring vertex.
Answers
The most stable carbocation among the given options is structure (B). structure 2 has a ch3 group at the first vertex and a positive charge at the third ring vertex.
1. Identify the carbocations: Each structure has a carbocation with a positive charge at different ring vertices.
2. Examine the stability: Carbocation stability is determined by the ability to spread the positive charge across neighboring atoms. The more the positive charge can be delocalized, the more stable the carbocation.
3. Determine the most stable carbocation: Structure B has a positive charge at the third ring vertex, which allows it to be in a secondary carbocation position with two carbon atoms neighboring the positively charged carbon. This configuration provides better delocalization of the positive charge compared to other structures, making it the most stable carbocation.
In summary, structure B(structure 2 has a ch3 group at the first vertex and a positive charge at the third ring vertex.), with the positive charge at the third ring vertex, is the most stable carbocation among the given options.
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How much heat must be added to a 34.2 g sample of aluminum in order to raise the temperature of the aluminum 34 oC? (The specific heat of Aluminum is 0.9 J/g oC)
Answers
The amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.
What is Temperature?
Temperature is a measure of the average kinetic energy of the particles in a substance. It is a physical property that determines the direction of heat flow between two objects or systems in contact with each other. Temperature is measured in degrees Celsius (°C) or Fahrenheit (°F), or in kelvin (K) in the International System of Units (SI).
The amount of heat (q) required to raise the temperature of a substance can be calculated using the formula:
q = m x c x ΔT
Where:
m = mass of the substance (in grams)
c = specific heat of the substance (in J/g oC)
ΔT = change in temperature (in oC)
Plugging in the values given:
m = 34.2 g
c = 0.9 J/g oC
ΔT = 34 oC
q = (34.2 g) x (0.9 J/g oC) x (34 oC)
q = 1043.52 J
Therefore, the amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.
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Part B
? Question
Explain how men and women in general interpreted the
results of the study on gender bias.
Select the correct answer from each drop-down menu.
According to the article, male scientists tended to
regard the study 1)less favorable than 2) about the same as 3) more favorable than
female
scientists. Male scientists also considered the study
to be 1) more important 2) less important
than female scientists
did.
Answers
The male scientists did not so much regard the study due to gender bias.
What are the gender biases of men and women?
Gender biases refer to the systematic ways in which individuals and society tend to favor one gender over the other. These biases can manifest in many different ways, including in the workplace, education, healthcare, and politics.
It's important to note that these biases are not limited to men and women, and they can vary depending on the culture, community, and individual. Also, these biases are not limited to one gender, both men and women can hold biases towards the other gender. Gender biases can have a significant impact on individual's life, limiting their opportunities and opportunities for development.
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Answer:
Less favorably than .
Less important .
Explanation:
Who made the first periodic table
Answers
The correct answer is Dmitri Mendeleev
For how many of the following does the bond order decrease if you add one electron to the neutral molecule?
B2, C2, P2, F2
Answers
If we add one electron to the neutral molecule then the bond order decrease by two units (2).
What is the bond order?The expression Bond Order makes reference to the amount or number of electrically negative electrons that are shared by two different atoms in a particular chemical bond. For example, the bond order of boron dimer is 1/2 because it has a net charge equal to +1.
In conclusion, if we add one electron to the neutral molecule then the bond order decrease by two units (2).
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how many grams of al2(so4)3 are equal to 8.102 moles of this substance
Answers
Answer:
1 moles Al2(SO4)3 to grams = 342.15088 grams
2 moles Al2(SO4)3 to grams = 684.30175 grams
3 moles Al2(SO4)3 to grams = 1026.45263 grams
4 moles Al2(SO4)3 to grams = 1368.6035 grams
5 moles Al2(SO4)3 to grams = 1710.75438 grams
6 moles Al2(SO4)3 to grams = 2052.90526 grams
7 moles Al2(SO4)3 to grams = 2395.05613 grams
8 moles Al2(SO4)3 to grams = 2737.20701 grams
9 moles Al2(SO4)3 to grams = 3079.35788 grams
10 moles Al2(SO4)3 to grams = 3421.50876 grams
Explanation:
??
The number of moles in 4.27×10^22 particles of silver is
Answers
Answer:
\(mol=0.0709mol\)
Explanation:
Hello,
In this since one mole equals 6.022x10²³ particles of silver by means of the Avogadro's number, we can compute the moles in 4.27x10²² particles as shown below:
\(mol=4.27x10^{22}particles*\frac{1mol}{6.022x10^{23}particles}\\\\mol=0.0709mol\)
Best regards.
What happens to gas particles when they are compressed?
1)Gas molecules move further apart.
2)Gas molecules get closer together.
3)Some gas molecules move further apart and some move closer together.
Answers
Answer:
3)Some gas molecules move further apart and some move closer together.
Explanation:
because When more gas particles enter a container, there is less space for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure. There are several units used to express pressure.
What type of reaction mechanism accounts for the reaction of an alkene with aqueous acid to give an alcohol
Answers
Answer: Electrophilic addition reaction
Explanation:
Alkenes are compounds which have at least one double bond between the carbon atoms in the molecule. This is an indication of a shortage of hydrogen atoms. The compound is said to be unsaturated. As an unsaturated compound alkene undergoes the following reaction:
-- Combustion reaction
-- Hydrogenation reaction
-- Addition reaction.
The addition reaction of alkenes occur due to the presence of pi electrons in which an electrophile attacks the carbon-carbon double bond to form the addition products. An electrophile is a molecule that has the affinity to react with other molecules containing a donatable pair of electrons.
A typical example of reaction between alkene and acid is in the decolourisation of acidified potassium tetraoxomanganate(VII) with ethene. The oxygen supplied to the reaction breaks the double bond to yield ethane 1,2 diol ( an alcohol).
The reaction of an alkene with the acid has been performed with the carbocation intermediate formation, followed by the nucleophilic substitution reaction.
The alkenes have been the hydrocarbons with the presence of one double bond in the structure. The double bond has been consisted of the pi electrons.
The alkene has been bonded with the pi-electron, thus in the chemical reaction the pi bond-breaking results in the partial negative and positive charge to the carbon atoms. The negative OH group has been the nucleophile that is attracted by the negatively charged carbon atom, and the bond formation results in the alcohol.
The reaction for an alkene with acid has been given in the image attached.
Thus, the reaction of an alkene with the acid has been performed with the carbocation intermediate formation, followed by the nucleophilic substitution reaction.
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please help me out!! 10 points <3
Answers
Answer:it’s b
Explanation:I took. The test and got 100
Answer:
a- i know the other person said that it was b but i looked it but and it seems to be A. whoops-
Explanation:
Do you know your periodic table ABC? What is the only letter of alphabet that does not appear in the periodic table?
Answers
Answer:
\(j\)Explanation:
Here, we want to get the alphabet, not on the periodic table
The only letter of the alphabet not present in the periodic table is the letter "J"
No elements have the letter j in it
Answer: The letter j is the only letter of the alphabet that does not appear in the periodic table.
The EM Spectrum is the __________ range of EM waves in order of __________ frequency and __________ wavelength.
Answers
Answer:
entire, increasing, decreasing
Explanation:
The EM Spectrum is the entire range of EM waves in order of increasing frequency and decreasing wavelength.
How many kilojoules of heat are needed to raise the temperature of 10g of aluminum from 22 degrees C to 55 degrees C, if the specific heat of aluminum is .901 j/gc?
Answers
Answer:
name four agricultural inputs are subsidized by the government
0.297 kJ of heat is needed to raise the temperature of 10g of aluminum from 22 degrees Celsius to 55 degrees Celsius.
The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
It is a measure of how much energy it takes to raise the temperature of a substance. It is the amount of heat necessary to raise one mass unit of that substance by one temperature unit.
It is given by the formula -
Q = mcΔT
where, Q = amount of heat
m = mass
c = specific heat
ΔT = Change in temperature
Given,
mass = 10g
c = 0.901J/g⁰C
Initial temperature (T₁) = 22⁰C
Final Temperature (T₂) = 55⁰C
Q = mcΔT
= 10 × 0.901 × (55 -22)
= 297.33 J = 0.297 kJ
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I NEED HELP ASAP A liquid does ____________ have a definite shape but has a __________ volume. *
Answers
Answer:
A liquid does NOT have a definite shape but has a DEFINITE volume.
Explanation:
If you pour water in a shaped glass or container, it takes that shape of the object. But if you pour water on the table, it will run all aver the place.
Which structure is consistent with this 'H NMR spectrum? (wdd) a. Hg CH;CH; CHACH; H (b) 8 CH;O COCH-CH; (C) CH;CHz CH;CHz (D) CCH; CH;CHz
Answers
The structure is consistent with this 'H NMR spectrum is CH;OCCH;. Option a is correct answer.
The 'H NMR spectrum doesn't provide enough information to definitively determine the structure of the molecule. However, based solely on given options, the structure that is most consistent with the chemical shift of the proton signal at around 3.7 ppm is option A, CH3OC(=O)CH2CH3.
This is because the chemical shift of the proton on the OCH3 group is typically found in this region, and the presence of the carbonyl group would also affect the chemical shift of nearby protons. However, additional spectroscopic data and/or chemical tests may be necessary to confirm the structure.
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--The complete question is, Which structure is consistent with this 'H NMR spectrum? CH;OCCH; (B) COCH;CH; (C) OCCH,CH; (D) OCCH; CH;--