when the group of fatty acids reacts in a dehydration synthesis reaction with the group of glycerol, fats or oils are formed.
Answers
Fats or oils are created when the hydroxide group of glycerol combines in a dehydration synthesis process with the carboxyl group of fatty acids.
What are fatty acids?
The building blocks of fat in our bodies and the food we eat are called fatty acids. During digestion, the body transforms lipids into fatty acids so they may be absorbed into the bloodstream. A molecule known as a triglyceride is created when three fatty acid molecules are linked together.
Saturated, monounsaturated, and polyunsaturated fatty acids are all present in dietary fats. Even while meals include all three forms of fatty acids, they are frequently grouped according to the prevalent type.
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Water is a polar solvent and carbon tetrachloride (CCl4) is a nonpolar solvent. In which solvent is each of the following more likely to be soluble?a. NaNO3, ionicb. I2, nonpolarc. sucrose (table sugar), polard. gasoline, nonpolare. vegetable oil, nonpolarf. benzene, nonpolarg. LiCl, ionich. Na2SO4, ionic
Answers
One of the first ten compounds, carbon tetrachloride, is used in a variety of industrial manufacturing processes as well as in consumer products such as paints, adhesives, degreasers, and other things.
How about a summary of carbon tetrachloride?An organic molecule called carbon tetrachloride is made up of a core carbon atom that is encircled by four chlorine atoms arranged in a tetrahedron. Because of its extremely low melting point, it is found as a colorless liquid at ambient temperature. It has a wide range of uses, including in cleaning supplies, fire extinguishers, and fumigants. It has been discovered that large amounts of it can have negative health effects.
A substance's solubility refers to its capacity to dissolve in a certain solvent. The fundamental solubility rule tells us whether a given item dissolves in
It is a clear liquid that has a faintly perceptible sweet odor. It is also known as benziform, perchloromethane, methane tetrachloride, carbon chloride, and methane tetrachloride. The most common way to encounter carbon tetrachloride is as a colorless gas in the air. Both its inflammability and ease of dissolution in water are nonexistent.
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11 GRAMS of an electrolyte was dissolved in 44 grams of water, the resulting solution
was found to have a molarity of 0.497 mol/L. The freezing point of the solution was
determined to be -2.92°C. The freezing point depression constant for water is -1.86°C
and pure water may be assumed to freeze at 0°C. If the molecular weight of the
electrolyte is 106.8 g/mol and it takes 33 minutes to perform the experiment, what is
the molarity of the solution in mol/L? Enter a numeric answer only
Answers
The molarity of the solution is 0.234 mol/L
What is the molarity of a solution?The molarity of a solution is the amount in moles of a solute dissolved in a given volume of solvent.
Molarity = number of moles/ volume of solution in litersThe molarity of the solution is determined as follows:
Number of moles of electrolyte = mass/molar massmass of electrolyte = 11 g
molar mass of electrolyte = 106.8 /mol
Number of moles of electrolyte = 11/106.8 = 0.0103 moles
Volume of water = mass/densitydensity of water = 1 g/cm³
mass of water = 44 g
Volume of water = 44/1 = 44 ml or 0.044 L
Molarity of solution = 0.0103/0.044
Molarity of solution = 0.234 mol/L
In conclusion, the molarity of the solution is determined from the moles of solute and volume of solvent.
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A star evolves off the main sequence when:
1. helium is exhausted in the stellar core.
2. hydrogen is exhausted in the stellar core.
3. it ejects a planetary nebula.
Our solar system’s gas giant planets (and those of other solar systems) did not become stars because:
1. planets are solid objects while stars are gaseous.
2. they are not massive enough to generate the high temperatures and
pressures necessary to start hydrogen fusion in the core.
3. they are not massive enough to generate the high temperatures and
pressures necessary to start helium fusion in the core.
Answers
A star evolves off the main sequence when helium is exhausted in the stellar core.Our solar system’s gas giant planets (and those of other solar systems) did not become stars because they are not massive enough to generate the high temperatures and pressures necessary to start hydrogen fusion in the core.
Stars evolve off the main sequence when the nuclear fusion in their cores is no longer capable of supplying sufficient energy to maintain the gravitational energy, causing it to contract and the outer layers to expand and cool. When hydrogen runs out in the core of a star, the core shrinks and heats up and the outer layers expand, resulting in a red giant. However, when helium is consumed in the core, the core collapses and heats up, causing the outer envelope to get expelled, and the core evolves into a white dwarf.
A gas giant planet's temperature and pressure aren't high enough to generate fusion. They aren't dense enough to generate the heat required for nuclear fusion. Therefore, gas giant planets do not generate their own light and heat in the same way as stars. They can emit more energy than they obtain from the sun if they have a significant atmosphere. The planets in the solar system, such as Jupiter and Saturn, are examples of gas giants.
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I need to balance the equation and calculate the molarity
Answers
Answer: 0.109 M
Explanation:
The
the surface area of the reactants, the faster the reaction rate.
A. greater
B. lesser
Answers
hope this helps!!
william aston created the mass spectrograph to analyze and separated them, found 218 and found mass and percent abundance of each
Answers
The given statement " William Aston created the mass spectrograph to analyze and separated them, found 218 and found mass and percent abundance of each atoms" is false.
The mass spectrograph was not invented by William Aston. It was actually invented by J.J. Thomson in the early 20th century.
J.J. Thomson's work with the mass spectrograph led to the discovery of isotopes, which are different forms of an element with the same number of protons but different numbers of neutrons. Isotopes have different masses, and the mass spectrograph allowed scientists to separate and analyze them based on their mass-to-charge ratio.
The process of using a mass spectrograph to determine the mass and percent abundance of isotopes is known as mass spectrometry. It involves ionizing a sample, separating the ions based on their mass-to-charge ratio, and detecting the ions to determine their abundance.
The completed question is given as,
State true or false
William Aston created the mass spectrograph to analyze and separated them, found 218 and found mass and percent abundance of each atoms.
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Two glasses labeled A and B contain equal amounts of water at different temperatures. Maya put a drop of blue dye into each of the two glasses. The table shows the time taken by the water in the two glasses to become blue.
Dye Experiment
Glass Time
A 5 seconds
B 20 seconds
Which of the following statements is correct?
The water in Glass A is cooler than the water in Glass B; therefore, the particles in Glass A move faster.
The water in Glass A is warmer than the water in Glass B; therefore, the particles in Glass A move faster.
The water in Glass A is cooler than the water in Glass B; therefore, the water particles in Glass A are stationary.
The water in Glass A is warmer than the water in Glass B; therefore, the water particles in Glass A are stationary.
Answers
Answer:
The water in glass A is warmer than the water in glass B therefore the particles move faster
Explanation:
Diffusion is influenced by temperature, concentration gradient and others. in this case the higher the temperature the faster the diffusion rate while when cooler it is slower
Answer:
B. The water in Glass A is warmer than the water in Glass B; therefore, the particles in Glass A move faster.
Explanation:
I took the exam
The price of gold (molar mass = 196.97 g/mol) has varied so much over the last 30 years that with $100 you could buy as much as 2.6 troy ounces (81 g) of gold or as little as 0.13 troy ounces (4.0 g). calculate the amount in moles that these two masses of gold represent.
Answers
Answer:
0.41 and 0.02 moles Au
Explanation:
Moles:
81 grams (2.6 troy oz):
mole Au = 81g/(196.97 g/mole) = 0.41 moles Au
4.0g (0.13 oz):
mole Au = 4.0g/(196.97 g/mole) = 0.020 moles Au
In the PhET simulation, select Oscillate, select No End, and scale Damping to none. (Leave Tension at the highest setting since it is a physical property that does not apply to a wave of light, thus we can ignore it as long as it is at the highest setting.) Classify each change (which can be manipulated within the green box) acc,rding to its effect on the wavelength. Drag the appropriate items to their respective bins.
Answers
To accurately classify the changes in the PhET simulation's effect on the wavelength, a description of the available changes and their respective bins is necessary In general, changes that can affect the wavelength in a wave simulation include adjusting the frequency, amplitude, speed, or medium properties.
Each of these changes can have a specific effect on the wavelength of the wave. For example, increasing the frequency generally results in a shorter wavelength, while decreasing the frequency leads to a longer wavelength. Similarly, altering the amplitude may not directly affect the wavelength but can impact the intensity or energy of the wave.
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what is the number of sulfur atoms that equal a mass of 32.07 g?
Answers
Next, let's convert the given mass to moles:
32.07 g / 32.06 g/mol = 0.9998 mol
Finally, we can use Avogadro's number to calculate the number of sulfur atoms:
0.9998 mol x 6.022 x 10^23 atoms/mol = 6.02 x 10^23 atoms
Therefore, the number of sulfur atoms that equal a mass of 32.07 g is 6.02 x 10^23 atoms.
Goodluck!
The number of sulfur atoms that weigh 32.07 g = Avogadro's number × number of molesNumber of atoms = 6.022 × 1023 atoms/mol × 1 molNumber of atoms = 6.022 × 1023 atomsTherefore, the number of sulfur atoms that equal a mass of 32.07 g is 6.022 × 10^23 atoms.
The atomic mass of sulfur is 32.07 g/mol. Therefore, 1 mole of sulfur atoms weighs 32.07 g. This means that we have to find the number of sulfur atoms that weigh 32.07 g.Step 1: Determine the number of moles of sulfurStep 2: Calculate the number of atomsStep 1:The atomic mass of sulfur is 32.07 g/mol. The number of moles of sulfur = Mass of sulfur/ Atomic mass of sulfurNumber of moles of sulfur = 32.07 g/32.07 g/molNumber of moles of sulfur = 1 molStep 2:The Avogadro's number is used to calculate the number of atoms. Avogadro's number is the number of atoms in 1 mole of atoms. Avogadro's number = 6.022 × 1023 atoms/molTherefore, The number of sulfur atoms that weigh 32.07 g = Avogadro's number × number of molesNumber of atoms = 6.022 × 1023 atoms/mol × 1 molNumber of atoms = 6.022 × 1023 atomsTherefore, the number of sulfur atoms that equal a mass of 32.07 g is 6.022 × 10^23 atoms.
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Which describes a concept that was not previously known but was developed as a direct result of Mendel’s experiments with pea plants?
Organisms with a recessive trait can have a dominant allele for the trait.
All observable traits are dominant.
Organisms have more than one observable trait.
Organisms can be bred for specific traits based on a pattern of inheritance.
Answers
Answer:
Organisms with a recessive trait can have a dominant allele for the trait.
Explanation:
hope this helps
Answer
D
Organisms can be bred for specific traits based on a pattern of inheritance.
In a constant‑pressure calorimeter, 70.0 mL70.0 mL of 0.320 M Ba(OH)20.320 M Ba(OH)2 was added to 70.0 mL70.0 mL of 0.640 M HCl.0.640 M HCl. The reaction caused the temperature of the solution to rise from 23.00 ∘C23.00 ∘C to 27.36 ∘C.27.36 ∘C. If the solution has the same density and specific heat as water ( 1.00 g/mL1.00 g/mL and 4.184J/g⋅K,)4.184J/g⋅K,) respectively), what is ΔHΔH for this reaction (per mole H2OH2O produced)
Answers
Answer:
57.0kJ/mol is ΔH of the reaction
Explanation:
The reaction is:
1/2 Ba(OH)₂ + HCl → 1/2 BaCl₂ + H₂O + ΔH.
Where ΔH is the heat of reaction per mole of water.
Moles of water produced are equal to moles of HCl that are:
70.0mL = 0.070L * (0.640mol / L) = 0.0448moles HCl = Moles of water produced.
Now, heat produced is determined using coffee-cup calorimeter equation:
Q = m×ΔT×C
Where Q is heat released
m is mass of solution (70mL + 70mL = 140mL = 140g -Density of 1g/mL-)
ΔT is change in temperature (27.36°C - 23.00°C = 4.36°C)
And C is specific heat of the solution (4.184J/gK)
Replacing:
Q = 140g×4.36°C×4.184J/gK
Q = 2553.9J
This is the heat released when 0.0448 moles of water are produced, that means ΔH is:
2553.9J / 0.0448moles
ΔH = 57000J/mol =
57.0kJ/mol is ΔH of the reaction
predict the product of each reaction below and indicate if the mechanism is likely to be sn1, sn2, e1, e2 or e1cb. a) b) c)
Answers
To calculate the percent yield of 1-bromobutane obtained in your experiment, you need to know the actual yield (the amount of 1-bromobutane you obtained) and the theoretical yield (the maximum amount of 1-bromobutane that could be produced based on the starting materials).
The percent yield is calculated using the formula: (actual yield / theoretical yield) x 100%. Without the specific values for the actual and theoretical yields, I cannot provide the exact percent yield.
Experimental evidence that the product isolated in your synthetic experiment is 1-bromobutane can include various analytical techniques such as nuclear magnetic resonance (NMR) spectroscopy, infrared (IR) spectroscopy, or mass spectrometry (MS). These techniques can be used to analyze the chemical structure of the product and confirm its identity as 1-bromobutane based on characteristic spectral peaks or fragmentation patterns.
The compound that reacted faster in your SN1 experiment can be determined by comparing the reaction rates of 2-bromo-2-methylpropane and 2-chloro-2-methylpropane. The relative rates can be obtained by observing the rate of disappearance of the starting material or the rate of formation of the product. Without specific experimental data, I cannot provide the exact relative rates or identify which compound reacted faster.
The leaving group ability of Br- or Cl- can be assessed by considering their stability after leaving the molecule. Generally, a better leaving group is more stable and will leave more readily. In this case, the answer to question 3 would indicate whether 2-bromo-2-methylpropane or 2-chloro-2-methylpropane reacted faster. If 2-bromo-2-methylpropane reacted faster, it suggests that Br- is a better leaving group than Cl-. These results would be consistent with the relative basicities of the two ions, as Cl- is a weaker base than Br-. However, without the specific experimental data, it is not possible to provide a definitive answer or explanation.
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C3H8 +02 → CO2 + H20
O Single Replacement
O Decomposition
O Double Replacement
O Combustion
Answers
Answer:
Combustion reaction.
Explanation:
which position would be appropriate for a client with severe ascites? A. Fowler'sB. Side-lyingC. reverse TrendeleburgD. Sims
Answers
The appropriate position for a client with severe ascites would be Fowler's position. This position allows for improved breathing and reduces pressure on the abdomen.
Side-lying and Sims positions may increase discomfort and pressure on the affected area, while reverse Trendeleburg position may worsen the condition by increasing fluid accumulation in the abdomen.
The accumulation of extra fluid in the abdominal cavity is referred to as ascites. Ascites can be divided into three categories: mild, moderate, and severe, depending on the degree of fluid buildup.
Uncomplicated and refractory ascites are the two forms of ascites. Refractory ascites, on the other hand, is less common and extremely difficult to cure, leading to a high death rate. Uncomplicated ascites is the most frequent kind and responds well to treatment. Refractory ascites and renal disease are frequently linked.
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A nearly complete skeleton, ____ is a classic example of a Neanderthal with many defining Neanderthal characteristics. Group of answer choices Taung Child La Ferrassie 1 Piltdown Man KNM-ER 1805
Answers
Answer: La Ferrassie 1
Explanation: La Ferrassie 1, often referred to as LF1, is a male Neanderthal skeleton estimated to be 70–50,000 years old. It was discovered at the La Ferrassie site in France by Louis Capitan and Denis Peyrony in 1909. The skull is the most complete Neanderthal skull ever found.
Complete the equation for the graph: \[ y= \] 3 more group attempts remalning
Answers
The equation for the graph can be completed as follows: y = 3 + (number of group attempts remaining)
Here, "3 more group attempts remaining" indicates that there were already some group attempts that have been made. Since there are 3 more group attempts left, we can add 3 to the number of remaining group attempts to get the total number of group attempts.
y = 3 + (number of group attempts remaining)
The above equation gives the value of y (dependent variable) for any given value of the number of group attempts remaining (independent variable).
The equation y = 3 + (number of group attempts remaining) represents a straight line on the coordinate plane, where y is the dependent variable (vertical axis) and the number of group attempts remaining is the independent variable (horizontal axis). The slope of the line is 1, which means that y increases by 1 when the number of group attempts remaining increases by 1. The y-intercept is 3, which means that when there are no group attempts remaining (i.e., the number of group attempts remaining is zero), y is equal to 3.
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What location is 90 degrees away from the equator?
A) The south pole
B) Polaris
C) Both A & B
D) The north pole
Answers
Each parallel measures one degree north or south of the Equator, with 90 degrees north of the Equator and 90 degrees south of the Equator
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what is the mass of 1 mole of water
Answers
Answer:
18.01528 g/mol
Explanation:
Using the equation to figure this out
Answer:
18.01528 g/mol
what is the difference between glutamic acid and valine?
Answers
The main difference between glutamic acid and valine is that glutamic acid is a non-essential amino acid, while valine is an essential amino acid. Glutamic acid is involved in various physiological processes and is a precursor for the synthesis of the neurotransmitter GABA. Valine, on the other hand, is primarily involved in protein synthesis and is an important component of muscle tissue.
glutamic acid and valine are both amino acids, which are the building blocks of proteins. Glutamic acid is a non-essential amino acid, meaning it can be synthesized by the body, while valine is an essential amino acid, meaning it must be obtained from the diet.
Glutamic acid is involved in various physiological processes, including the synthesis of proteins, neurotransmission, and the metabolism of other amino acids. It is also a precursor for the synthesis of the neurotransmitter gamma-aminobutyric acid (GABA). Valine, on the other hand, is primarily involved in protein synthesis and is an important component of muscle tissue.
In terms of their chemical structures, glutamic acid is an acidic amino acid, while valine is a neutral amino acid. Glutamic acid has a carboxyl group (-COOH) and an amino group (-NH2) attached to a central carbon atom, along with a side chain. Valine, on the other hand, has a methyl group (-CH3) attached to a central carbon atom, along with a side chain.
Overall, the main difference between glutamic acid and valine lies in their chemical structures and their roles in the body.
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Valine and glutamic acid are two different amino acids with distinct characteristics and roles.
Glutamic acid is a polar, acidic amino acid, with a side chain containing a carboxyl group, an amino group, and a carboxylic acid functional group. It acts as a neurotransmitter and affects metabolism and protein synthesis. In contrast, valine is a hydrophobic, nonpolar amino acid with a branched-chain alkyl side chain.
It is important for protein synthesis and helps to stabilize proteins. Valine must come from the diet as the body is unable to produce it. Finally, valine is nonpolar and important for protein synthesis while glutamic acid is polar and acidic, which has a function in neurotransmission.
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what is mean by scientific approach in chemistry
brief it
Answers
Answer:
scientific approach
Explanation:
Method of investigation in which a problems is First identified and observations, experiment are done
An airplane flies 2100 miles in 3hours. What is it’s average speed in miles per hour?
Answers
Answer:
700 miles per hour
Explanation:
\(average \: speed \\ = \frac{distance}{time} \\ = \frac{2100}{3} \\ = 700 \: miles \: per \: hour\)
What are the reactants for cellular respiration
Answers
Answer:
oxygen and glucose
Explanation:
science
Calculate the wavelength (a) of a photon of green light that has a frequency (v) of 5.76 x
10145
Answers
Answer:
5133.89m
Explanation:
Wavelength = c/f
c= 3 × 10^8
f = 5.76 × 10145
= (3 ×10^8)/ (5.76 × 10145)
= 5133.89m
what is the cause for placing calcium in 2 or IIA group of the Modern periodic table?
Answers
Answer:
Since it has 2 valence electrons
Explanation:
How many oxygen atoms were used to write Felicia’s name?
Answers
Answer:
Explanation:
https://opentextbc.ca/introductorychemistry/chapter/molecules-and-chemical-nomenclature-2/
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in a 9.0 v circuit, there are 5.0 ohm, 5.0 ohm, 4.0 ohm, 4.0 ohm, and 8.0 ohm resistors.
what is the total current of the circuit
what is the voltage across the 8 ohm resistor
what is the power dissipated across each of the 5 ohm resistors
what is the current through each of the 4 ohm resistors
Answers
All resistors are in series, the current through each of the 4 ohm resistors is equal to the total current, approximately 0.346 A.
The current through each of the 4 ohm resistors is equal since they have the same resistance and are in parallel with each other. Therefore, the current through each of the 4 ohm resistors is: I = V/R = 9.0/4.0 = 2.25A.
In a 9.0 V circuit with resistors of 5.0 ohm, 5.0 ohm, 4.0 ohm, 4.0 ohm, and 8.0 ohm, you need to find the total resistance to calculate the total current. Assuming these resistors are connected in series, the total resistance is the sum of all individual resistances: R_total = 5 + 5 + 4 + 4 + 8 = 26 ohms.
To find the total current, use Ohm's Law (V = IR). Therefore, I_total = V/R_total = 9/26 ≈ 0.346 A.
The voltage across the 8 ohm resistor can also be found using Ohm's Law. V_8ohm = I_total * 8 = 0.346 * 8 ≈ 2.77 V.
To calculate the power dissipated across each of the 5 ohm resistors, use the formula P = I²R. P_5ohm = (0.346)² * 5 ≈ 0.598 W.
Finally, since all resistors are in series, the current through each of the 4 ohm resistors is equal to the total current, approximately 0.346 A.
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name any ten trainings that provide the opportunity of foreign employment
Answers
Answer:
• Abogado
• Administrador o conservacionista de campo
• Agrícola o agrónomo
• Apiculturísta
• Arquitecto
• Arquitecto ambiental
• Asistente de investigación
• Astrónomo
• Bioquímico
• Científico animal
• Científico avícola
• Científico de suelo
• Consejero vocacional
• Contador
• Criador animal
• Economista
• Entomólogo
• Epidemiólogo
• Farmacólogo
• Físico
• Fitogenetista
• Forestal
• Genetista
• Geoquímico
• Geofísico
• Horticultor
• Ingeniero
• Matemático (incluyendo estadístico)
• Meteorólogo
• Nutriólogo
• Profesor
• Químico
• Silviculturiasta (incluyendo forestalista)
• Terapeuta recreativo
• Topógrafo
• Trabajador social
• Urbanista (incluyendo geógrafo)
• Zoologísta
• Técnico científico de cualquiera de las siguientes disciplinas: ciencias agrícolas, astronomía, biología, química, ingeniería, silvicultura, geología, geofísica, meteorología o física
Explanation:
draw the product for the hydroxylation of a mixture of cis- and trans-3-methyl-2-hexene.
Answers
A mixture of cis- and trans-3-methyl-2-hexene is hydroxylated, as shown in the diagram below. The most common definition of hydroxylation in chemistry is a chemical process.
A hydroxyl group is added to an organic molecule as a result (OH).The degree of hydroxylation refers to how many OH groups are present in a given molecule (ii). the process of hydroxylation. A hydrocarbon utilised in organic chemistry is hexene, which has the chemical formula C6H12. A chemical with two carbon atoms joined by a double bond is known as an alkene, and the prefix "-ene" denotes its presence. The word "hex" comes from the fact that the molecule has six carbon atoms in it.
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Which of these is a physical property of glass?
Answers
Answer:
The main characteristics of glass are transparency, heat resistance, pressure and breakage resistance and chemical resistance.
Explanation:
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