true,a multifaceted synthetic route to functional polyacrylates by trans-esterification of poly(pentafluorophenyl acrylates).
polyacrylate, any of a class of synthetic resins derived from the polymerization of acrylic esters. Polyacrylates are used primarily in paints and other surface coatings, adhesives, and textiles because they can be formed into plastic materials with notable clarity and flexibility using certain methods. They are strong and flexible, allowing for the creation of solid products with a supple texture. It is a large compound that cannot pass through the skin's barrier and has been shown to be safe for cosmetic use. Polyacrylate, also known as Acrylate polymers, is a type of polymer that is commonly referred to as a plastic. Transesterification is the process of exchanging the organic group R′′ of an ester with the organic group R' of an alcohol in organic chemistry. The addition of an acid or base catalyst frequently catalyses these reactions. Other enzymes, particularly lipases, can also be used to carry out the reaction.
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Consider an ice cube and a hot radiator. Which has the higher thermal energy?
the ice cube
the radiator
The thermal energy of a material increases with temperature. Therefore, the radiator has the higher thermal energy.
What is thermal energy?When the temperature rises, a type of energy called thermal energy is produced. The amount of thermal energy usually directly inversely proportional to the object's change in temperature. Thermal energy takes the form of heat.
The thermal energy of a material increases with temperature. The quicker motions of the substance's atoms and molecules are what cause thermal energy to grow as temperature rises.
In some cases, a substance's molecules will separate from one another and leave because the temperature is just so high. Unexpectedly, thermal energy also affects the states of matter. The radiator has the higher thermal energy.
Therefore, the radiator has the higher thermal energy.
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A
is useful in explaining current behavior and predicting future behavior.
Psychology is useful in explaining current behavior and predicting future behavior.
What is psychology?Psychology is an empirical investigation of the intellect and conduct, encompassing a vast scope of subjects such as cognitive processes, affective states, volition, individual traits, and interpersonal dynamics.
Psychologists employ a diverse array of approaches to examine behavior, including careful observation, in-depth interviews, comprehensive surveys, and controlled experiments.
By discerning the underlying determinants, psychology serves as a tool to elucidate present conduct. These determinants may involve biological, psychological, and sociocultural influences.
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where do you think water vapor in air comes from?
How many grams are in 0.185 mol of dipropyl ether, (C3H7)2O?Group of answer choices18.9 grams6.15 x 1022 grams1.14 x 1025 grams
Answer:
\(18.9\text{ g}\)Explanation:
Here, we want to get the mass of 0.185 mol of dipropyl ether
To get this, we need to multiply the number of moles given by the molar mass
The molar mass of dipropyl ether is 102 g/mol
Thus, we have the mass as:
\(0.185\text{ }\times\text{ 102 = 18.9 g}\)What is a "bond" between atoms?
Answer:
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds :)
pOH of the 0.001M NaOH solution is
The pOH of the 0.001 M NaOH solution is approximately 3.
To determine the pOH of a solution, we need to know the concentration of hydroxide ions (OH-) in the solution.
In the case of a 0.001 M NaOH solution, we can assume that all of the NaOH dissociates completely in water to form Na+ and OH- ions. Therefore, the concentration of hydroxide ions in the solution is also 0.001 M.
The pOH is calculated using the equation:
pOH = -log[OH-]
Substituting the concentration of hydroxide ions, we have:
pOH = -log(0.001)
Using a calculator, we can evaluate the logarithm:
pOH ≈ 3
Therefore, the pOH of the 0.001 M NaOH solution is approximately 3.
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Does anyone have Personal Care services on E2020
Here are some questions on Personal Care services on E2020 are:
A client with a new ileostomy has been home for four days. The HHA is giving the client a bath and notices that the pouch is full. The HHA should say to the client: D. "I'll empty the pouch for you."A client is bedridden at home and has an infected draining sacral wound. The infection control supplies that should be kept in the home is: Gloves.What is infection?An infection is the entrance and growth of dangerous microorganisms in the body that harm the host, such as bacteria, viruses, fungus, or parasites.
Infections can be systemic (affecting the entire body) or localized (affecting a particular area of the body), and they can be moderate to severe.
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Assume 0.42 L of a 0.95 M solution of nickel (II) chloride, NiCl2, reacts with a 1.5 M solution of sodium hydroxide, NaOH, to produce nickel (II) hydroxide, Ni(OH)2, and sodium chloride, NaCl. The problem requires that you determine the volume of sodium hydroxide, NaOH, needed for the reaction to occur.
NiCl2(aq) + 2 NaOH(aq) → Ni(OH)2(s) + 2 NaCl(aq)
0.26L is the volume of sodium hydroxide, NaOH, needed for the reaction to occur.
What is volume?A measurement of three-dimensional space is volume. Several imperial or US customary units, as well as SI-derived units (such the cubic meter and liter), are frequently used to quantify it quantitatively (such as the gallon, quart, cubic inch).
Volume and length (cubed) have a symbiotic relationship. The capacity of such a container is typically regarded to be its volume.
Molarity₁×Volume₁=Molarity₂×Volume₂
0.95 × 0.42=1.5×Volume₂
Volume₂=(0.95 × 0.42)/1.5
=0.26L
Therefore, 0.26L is the volume of sodium hydroxide, NaOH, needed for the reaction to occur.
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In a specific molecule, there are 21 continuous conjugated bonds (each 140 pm in length) . You can assume this system can be approximated by a one-dimensional particle in a box (particle on a line). How much energy would be required to promote an electron from the n = 11 level to the n= 12 level?
3.7*\(10^{-20}\) J energy would be required to promote an electron from the n = 11 level to the n= 12 level.
According to particle in a box model energy is
E=\(\frac{n^{2} }{8ml^{2} } h^{2}\) where n = no of energy level = 10
h is Planck constant, m is mass of electron= 9.1*\(10^{-31}\)kg
and l is length of box= 140pm= 140*\(10^{-10}\) m.
so E =3.7*\(10^{-20}\)J.
What is particle in a box model?
The particle in a box model, sometimes referred to as the infinite potential well or the infinite square well, in quantum mechanics depicts a particle that is free to travel in a constrained area enclosed by impenetrable barriers.
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Am nevoie rapid de aceste exercitii
Answer:
I will find the answer for you
Explanation:
Just a minute
Which of the elements below will be found as diatomic molecules?
Answer:
one of these
H2
N2
O2
F2
Cl2
I2
Br2
Explanation:
There are seven diatomic molecules:
hydrogen = H2
nitrogen = N2
oxygen = O2
fluorine = F2
chlorine = Cl2
iodine = I2
bromine = Br2
in which location are there no changes in season
a north pole
B South Pole
C equator
D antártica
Answer: I'm going to say it's Antartica because the only seasons it have is summer and winter and it doesn't change.
Explanation:
Can a smoothie be separated by physical means ?
Answer:
No because the sugar that went to it dissolved and the fruits are very blended in. It depends what smoothie it is because you can evaporate a strawberry smoothie and have only the strawberry mix instead of the water or milk.
Explanation:
In the following take CV = 20.8 and CP = 29.1 J⋅mol−1⋅°C−1 for nitrogen gas: (a) Three moles of nitrogen at 30°C, contained in a rigid vessel, is heated to 250°C. How much heat is required if the vessel has a negligible heat capacity? If the vessel weighs 100 kg and has a heat capacity of 0.5 kJ⋅kg−1⋅°C−1, how much heat is required? (b) Four moles of nitrogen at 200°C is contained in a piston/cylinder arrangement. How much heat must be extracted from this system, which is kept at constant pressure, to cool it to 40°C if the heat capacity of the piston and cylinder is neglected?
Answer:
\(224 \times 13313\frac{.131?}{?244} \)
A sample of Cr(NO3)3 contains 8.36 mol of O. How many moles of Cr(NO3)3 are in
the sample?
Express your answer to 3 significant figures.
Answer:
Hope this helps ;) don't forget to rate this answer !
Explanation:
To find the number of moles of Cr(NO3)3 in the sample, we need to determine the number of moles of each element present in the compound.
The chemical formula for Cr(NO3)3 tells us that for every 1 mole of Cr(NO3)3, there is 1 mole of chromium (Cr), 3 moles of nitrogen (N), and 9 moles of oxygen (O).
We are given that the sample contains 8.36 moles of oxygen. Since the ratio of oxygen to Cr(NO3)3 is 9:1, the number of moles of Cr(NO3)3 in the sample is 8.36 moles O / 9 moles O/mole Cr(NO3)3 = 0.93 moles Cr(NO3)3.
Rounded to 3 significant figures, the answer is 0.93 moles Cr(NO3)3.
please help ITS A T E S T!!
Answer:
B
Explanation:
NEED THIS ASAP PLEASE
Homework
Harnessing Human Energy Chapter 3 Lesson 3.3
Writing an Argument for the School Principal
The argument for Harnessing Human Energy for the School Principal is written below
Dear Principal Tom,
Why we need to Harness Human EnergyHuman power as we have been taught is the effort or energy created by a human being. It is one that can be said to be pace of work per time. The Muscles act as the main source of power, and body heat can also be used for tasks like warming food, shelters, or other people.
There are lot of reasons why we need to make use of these energy and this is coming form the fact that energy from the environment is transformed by humans into forms that are very beneficial for their activities.
An example to buttress this point is from the first person to understand that running a magnet via a copper wire could create an electric current was an English physicist named Michael Faraday. It was a truly remarkable finding. Magnets and copper wire coils are used in enormous power plants to create almost all of the electricity we use today. Therefore, harnessing human energy can do us more good than harm.
From
John Joe.
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A small amount of chemical splashes in Frank’s eye. What should Frank do immediately?
Answer:
A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.
Explanation:
Brainlist
use the curves to determine the partial pressure of oxygen at 50% saturation for hemoglobin and myoglobin.
Based on the given oxygen-binding curve, partial pressure of oxygen at 50% saturation for hemoglobin is ≈ 28 pO2 and myoglobin ≈ 2 pO2. Myoglobin has a higher affinity for oxygen.
An oxygen-binding curve refers to the curve that illustrated the relationship between fractional saturation versus the concentration of oxygen. Fractional saturation indicates the presence of binding sites that have oxygen and range from zero (all sites are empty) to one (all sites are filled). Myoglobin and hemoglobin have slightly different properties due to their different structures which are commonly described by the oxygen binding curve. Based on the given curve, partial pressure of oxygen at 50% saturation for hemoglobin is ≈ 28 pO2 and myoglobin ≈ 2 pO2.
Myoglobin demonstrated a regular curve as when the concentration of oxygen is increased, myoglobin becomes saturated very quickly and then levels off, implying that myoglobin has a high affinity for oxygen, binds oxygen strongly and does not release oxygen very easily. Hemoglobin displays a sigmoidal curve, implying that hemoglobin has a lower affinity for oxygen, binds oxygen relatively weakly and releases it more easily than myoglobin.
Note: The question is incomplete. The complete question probably is: The graph below shows the oxygen-binding curves for myoglobin and hemoglobin. Use the curves to estimate the partial pressure of oxygen at 50% saturation for hemoglobin and myoglobin. Can you derive from these values, which protein has a higher affinity for oxygen?
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When you apply heat energy to a substance, where does the energy go? Think about the law of conservation of energy.
Answer:
the heat energy is transformed to any kind of energy depending on what it's meant to be transformed to.
remember it cannot be destroyed so it's definitely transformed to some kinda energy
HCI + NaOH → H₂O + NaCl balance
Answer: It does not need to be balanced.
Explanation:
2 H on both sides
1 Na on both sides
1 O on both sides
how many grams of calcium is used in this reaction, if 15.0 g calcium oxide are produced
Answer:10.71 g
Explanation:
calculate the percentage mass of calcium chloride, CaCi^2
Answer: m-%(Ca) = 40.08 / 110.98
Explanation: molar mass of CaCl2 is 40.08+ 2·35.45 = 110.98
Think you have one mole substance. It contains 40.08 g Ca
How many electrons are in the 6p subshell of Rn?
In the electrical arrangement, the 6p subshell of the radon element contains 6 electrons.
What is electronic configuration of radon?Radon is the 86th element in the periodic table, with the symbol 'Rn'. Radon is a type of noble gas. Radon contains a total of eighty-six electrons. These electrons are grouped in accordance with the laws of several orbits.The p-orbital can hold up to six electrons. As a result, the following six electrons enter the 2p orbital. The second orbit is now completely filled. As a result, the remaining electrons will go into the third orbit.As a result, the entire electron configuration of radon is 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 4f^14 5s^2 5p^6 5d^10 6s^2 6p^6.For more information on electronic configuration kindly visit to
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Explain how the processes of photosynthesis and respiration are related to each other
Answer:
Explanation:
The end product of Photosynthesis is glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
Express your answer as a chemical equation enter no reaction if no precipitate is formed
• We can see thatthis is a double displacement reaction
,• It does not form precipitate.
,• Therefore, no reaction.
Suppose a different fatty acid molecule were used, with a molecular volume of 4.48 x 10-22 mL/molecule, and a molar mass of 235 g/mol. Use these data and the expected value for Avogadro's number to calculate its density (g/mL) by dimensional analysis. Hint: try starting with 235 g over 1 mole.
if this decay has a halflife of 2.60 years what mass of 72.5g sodium-22 will remain after 15.6 years? how many grams?
The remaining mass is subject to random fluctuations due to the probabilistic nature of radioactive decay. After 15.6 years, only 1.133 grams of the original 72.5 grams of sodium-22 will remain.
Sodium-22 undergoes radioactive decay with a half-life of 2.60 years. This means that after 2.60 years, half of the original mass of sodium-22 will decay, and after another 2.60 years, half of the remaining mass will decay, and so on.
To calculate the mass of sodium-22 remaining after 15.6 years, we can use the formula:
mass remaining = initial mass x (1/2)^(t/half-life)
where "t" is the time that has elapsed, "half-life" is the half-life of the radioactive substance, and "initial mass" is the original mass of the substance.
Plugging in the values given in the problem, we get:
mass remaining = 72.5g x (1/2)^(15.6/2.60) = 72.5g x (1/2)^6 = 72.5g x 0.015625 = 1.133g
It's important to note that the formula used here assumes that the decay rate of the substance is constant over time, which may not be the case in reality.
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How does the mean free path in a sample of gas vary with temperature in a constant-volume container ?
Answer:
The mean free path in a sample of gas is the average distance traveled by a gas molecule between successive collisions with other molecules. In a constant-volume container, the mean free path is influenced by temperature.
As temperature increases, the kinetic energy of gas molecules also increases. This leads to higher molecular speeds and more frequent collisions between molecules. Consequently, the average distance traveled by a gas molecule between collisions decreases, resulting in a shorter mean free path.
Therefore, in a constant-volume container, as temperature increases, the mean free path of gas decreases.
brainlest pleos :)
Which type of precipitation is most likely to form during a thunderstorm A sleet
B hail
C snow
D freezing rain
Hail is most commonly formed within the cumulonimbus clouds of thunderstorms. Large updrafts of air can throw rain droplets high up into the tops of the cloud.
What is a thunderstorm?
A thunderstorm is a type of weather phenomenon characterized by thunder, lightning, and often heavy rain or hail. Thunderstorms are caused by the rapid upward movement of warm, moist air, which condenses into clouds and releases heat energy. This process can create strong updrafts and downdrafts within the cloud, which can lead to the formation of lightning and thunder.Thunder is caused by the rapid expansion of air around a lightning bolt, which creates a shock wave that we hear as thunder. Lightning is caused by the discharge of electrical energy between clouds or between a cloud and the ground. Lightning strikes can be very dangerous, and it is important to take precautions during a thunderstorm, such as staying indoors and avoiding contact with electrical appliances or metal objects.To know more about thunderstorm, click the link given below:
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Answer:
It is B.---HailExplanation:
Hope this helps good day