The temperature of the sample is 3527.8 K, or approximately 3254.6°C.
What is ideal gas law?Ideal gas law is the equation of state of hypothetical ideal gas.
As, PV = n RT, where P is pressure, V is volume, n is number of moles, R is the ideal gas constant (8.31 J/mol*K), and T is temperature in Kelvin.
2 atm * 11.2 L = 0.50 mol * 8.31 J/mol*K * T
Converting atm to pascals:
2 atm * 101325 Pa/atm = 202650 Pa
202650 Pa * 11.2 L = 0.50 mol * 8.31 J/mol*K * T
T = (202650 * 11.2) / (0.50 * 8.31)
T = 3527.8 K or 3254.6°C.
Therefore, the temperature of the sample is 3527.8 K, or approximately 3254.6°C.
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Note: The question given on the portal is incomplete. Here is the complete question.
Question: A 0.50 mole sample of CO2(g) at 2 atm occupies 11.2 liters. What is the temperature of the sample?
the bond angle assigned to molecular geometry is based upon all bond types (both sigma and pi bonds)?
The bond angle assigned to molecular geometry is based upon the positions of the bonded atoms in the molecule and the arrangements of the bonds between them, including both sigma and pi bonds.
What are Sigma bonds?
Sigma bonds are formed by the overlapping of atomic orbitals along the internuclear axis and are stronger and more directional than pi bonds. Pi bonds are formed by the lateral overlap of p orbitals and are weaker and less directional than sigma bonds.
In molecular geometry, the bond angles are determined by the arrangement of the sigma and pi bonds in the molecule. For example, the bond angles in a molecule with a trigonal planar geometry, such as BF3, are determined by the arrangement of the three sigma bonds between the central atom and the peripheral atoms. In a molecule with a tetrahedral geometry, such as CH4, the bond angles are determined by the arrangement of the four sigma bonds between the central atom and the peripheral atoms.
In general, the bond angles in a molecule are influenced by both the arrangement of the sigma and pi bonds and the electronic properties of the bonded atoms, such as their electron configuration and the hybridization of their orbitals.
The bond angle assigned to the molecular geometry is an important factor in determining the physical and chemical properties of a molecule, such as its reactivity, stability, and reactivity.
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sort the following into the proper waste container/area.
The proper waste container/area will be:
Solid waste;
Container Trashused filter paperSink
Liquid waste;acetone rinseleftover starting material reactionfiltrateGlass waste;
broken waterless condensermelting point tubeWhat kind of garbage is it?We must keep in mind that waste refers to a substance that is no longer in use. while we are discussing a waste. We refer to items that we will eventually discard or that we won't be able to put out.
The waste can then be separated according to the type of waste that it is, as demonstrated above.
Your question is incomplete but most probably your full question was
Sort the following into the proper waste container/area. Solid Waste Container Liquid Waste Container Glass Waste Container Trash Sink used filter paper acetone rinse broken waterless condenser leftover water from ice bath leftover starting material reaction filtrate melting point tube
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what is the symbol of this atom? enter both the mass and the atomic number.
The name of the element is Arsenic (As). Atomic number of arsenic is 33 and its mass number is 77.
Atomic number is defined as the number of a chemical element located in the periodic system, where the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the total number of electrons in the neutral atom, is also known as the atomic number.
Mass number is defined as the the total number of protons and neutrons present in an atom. Mass number can be calculated by adding the number of neutrons and the number of protons (atomic number) together.
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2 Fe203 + 3 C 4 Fe + 3 CO2
How many grams of Fe will be produced if 49.63 grams of CO 2 are produced?
Answer:
49.63 grams of CO2 is produced from the reaction of 3 moles of CO2 and 4 moles of Fe. Therefore, 4 moles of Fe is produced, which is equal to 192.16 grams of Fe.
Answer:49.63 grams of CO2... the girl on top is correct
Explanation:
given a 0.200 m solution of anserine at its isoelectric point and ready access to 0.300 m hcl, 0.300 m naoh and distilled water, describe the preparation of 1 l of 0.0400 m anserine buffered solution, ph 7.20.
To prepare 1 L of a 0.0400 M anserine buffered solution with a pH of 7.20, we can first calculate the isoelectric point (pI) of anserine.
Next, we need to determine the desired pH and the starting pH of the solution. The starting pH of the 0.200 M anserine solution at its pI is 7.00, and the desired pH is 7.20.
We can use the formula for the buffer capacity,
Buffer capacity = (base concentration) / (acid concentration)
The buffer capacity of the anserine solution is:
Buffer capacity = (0.200 M) / (0.300 M) = 2/3
Since the buffer capacity is less than 1, we can add a small amount of NaOH to raise the pH to 7.20 without a significant change in pH. We can calculate the volume of 0.300 M NaOH solution needed to raise the pH by 0.20 units:
Volume of NaOH = (Buffer capacity) * (Change in pH) * (Volume of solution)
= (2/3) * (0.20) * (1 L) = 0.133 L
So, we need to add 0.133 L of 0.300 M HCl to 1 L of 0.200 M anserine solution to reach a pH of 7.20.
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what are examples of solutions in your every day life?
The solution is the homogenous mixture that contains the two or more substances. The Solutions contain a solvent and a solute.
The substances that is dissolve is called as the solute. The substance that dissolve the substance is called as the solvent. The solution is the homogeneous mixture. The everyday example of the homogeneous mixture is as follows :
coffee or tea
1) The sweet tea or the coffee (sugar is added to the solution)
2) The juices
3) The saltwater
4) The bleach in which the sodium hypochlorite dissolved in water.
5) The carbonated beverages in which the carbon dioxide is dissolved in the water.
6) The powdered drinks
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how do you read a SDS Safety Data Sheet?
The qualities and dangers of a chemical substance are detailed in a Safety Data Sheet (SDS), along with handling, storage, and emergency response recommendations.
Look over the identification section: The item's name, supplier details, and product identification number are all included in this section (such as a product code or CAS number).
Read the hazard information: This section contains details about the substance's potentially harmful characteristics, such as its flammability, potential health risks, and environmental risks.
Please review the composition section: This section contains details on the composition of the product's constituents, their concentrations, and any impurities' characteristics.
Read the first-aid instructions: What to do in the event of a catastrophe or emergency is covered in this section.
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How many grams of KBr should you use to make 500.0 mL of a 1.30 M solution of KBr?
To make 500.0 mL of a 1.30 M solution of KBr, you need to determine the number of moles of KBr that would be required, and then convert that number to grams.
What is the complete explanation?The number of moles of KBr can be determined using the formula:
moles = concentration (M) * volume (L)
where the volume is in liters and the concentration is in moles/liter.
For this case, we have:
moles = 1.30 M * 0.500 L = 0.650 moles
Finally, to determine the number of grams of KBr needed, we can use the formula:
grams = moles * molar mass
where the molar mass of KBr is 119.0 g/mol.
For this case, we have:
grams = 0.650 moles * 119.0 g/mol = 77.35 g
Therefore, 77.35 g of KBr should be used to make 500.0 mL of a 1.30 M solution of KBr.
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Vinegar is sold as a 5.00% solution of acetic acid. How many mL of water is in a 455mL bottle of vinegar?
430 mL of water is found in a 455 mL bottle of vinegar.
How to find the mL of water?The bottle of vinegar is labeled as 5.00% solution of acetic acid, meaning that 5% of the solution is acetic acid and the rest is water.
To find the amount of water in the bottle, we can subtract the portion that is acetic acid from the total volume.
This can be done by multiplying the volume of the bottle by the percentage of acetic acid, and then subtracting this result from the total volume:
Volume of water = Total volume - (Total volume * % acetic acid)
Volume of water = 455 mL - (455 mL * 5%) = 455 mL - (455 mL * 0.05) = 455 mL - 22.75 mL = 432.25 mL
So, there is approximately 432.25 mL of water in a 455 mL bottle of vinegar.
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How to prepare a solution of NH4OH (0.3%) using: Ammonia NH3, 2 M solution in the Methanol (density 0.787)?
1. Calculate the required mass of ammonia:
Mass of ammonia = (0.3 g/100 mL) * (1000 mL) = 30 g
2. Calculate the volume of 2 M ammonia solution required to make 0.3% solution:
Volume of 2 M ammonia solution = (30 g/14 g/mL) = 2.14 mL
3. Calculate the volume of methanol required:
Volume of methanol = (1000 mL) - (2.14 mL) = 997.86 mL
4. Prepare the solution:
Add 2.14 mL of 2 M ammonia solution in 997.86 mL of methanol. Stir the solution until homogeneous. The solution is ready for use.
What is solution?
A solution is a homogeneous mixture composed of two or more substances. In a solution, the solute is dissolved in the solvent. Solutions are formed when the molecules of the solute separate from each other and spread out evenly throughout the solvent. Examples of solutions include salt water, rubbing alcohol, and sugar dissolved in water.
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2 Al + 3S ---> Al2S3
If 5.53g of Al2S3 are produced, how many grams of S would be used?
Mass of sulfur is 3.45g. Mole, often abbreviated as mol, is a commonly used unit of measurement in chemistry.
What is mole?Mole, often abbreviated as mol, is a commonly used unit of measurement in chemistry for vast amounts of tiny objects like molecule, atoms, or other specific particles. In addition, starting on May 20, 2019, the General Conference on Measures and Weights declared the mole as the quantity of the International System of Units. Additionally, practically all compounds have the same amount of additional particles or atoms in a mole.
2 Al + 3S [tex]\rightarrow[/tex] Al[tex]_2[/tex]S[tex]_3[/tex]
moles of Al[tex]_2[/tex]S[tex]_3[/tex]=5.53/150.16=0.036moles
The mole ratio between sulfur and Al[tex]_2[/tex]S[tex]_3[/tex] is 3:1
moles of sulfur= 3× 0.036=0.108moles
mass of sulfur= 0.108×32=3.45g
Therefore, mass of sulfur is 3.45g.
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The two polymers shown below have the same empirical formula. What pairs of monomers would you react together to make each of them? How might the physical properties of these two polymers differ?
Alkenes are useful in the production of polymers. They create polymers when smaller molecules are arranged end to end. The smallest molecules are known as monomers. The polymer's tensile strength grows as chain length and cross-linking do.
What exactly are monomers, exactly?A monomer is a molecule from a group of substances, primarily organic compounds, that can combine with other molecules to produce much larger molecules, or polymers. A monomer's ability to create chemical interactions with at least two other monomer molecules, known as polyfunctionality, is its primary characteristic.
Which monomers are some examples?Monomers include substances like ethylene, amino acids, vinyl chloride, and glucose. Each monomer has a different manner of linking to create a variety of polymers.
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aldehydes have a central carbon bound to two other carbons: T/F
It is untrue to say that aldehydes have a core carbon bonded to two additional carbons.
The carbonyl group in an aldehyde has a covalent bond on one side with hydrogen and another on the other with carbon. Because the carbonyl carbon in formaldehyde is connected to two hydrogens, it is an exception to this rule.
The simplest aldehyde structure, formaldehyde, often known as methanal, has the formula CH₂O. Ketone molecules consist of a core atom that is joined to two extra carbons via two bonds. It may be formulated using the equation R₂C=O. Acetone (propanone), whose chemical formula is (CH₃)₂CO, is the ketone with the most straightforward chemical structure.
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What is the physical property of gravity?
Answer: 9.8 meters per second
Explanation:
What are the natural processes injecting particulate matter into the atmosphere?
The natural processes injecting particulate matter into the atmosphere are Volcanic Eruption, Dust Storms, Forest Fires, Sea Spray, Biomass Burning, and Biogenic Emissions
There are several natural processes that can inject particulate matter into the atmosphere, including:
Volcanic eruptions: Volcanic eruptions can release large amounts of ash and other volcanic particles into the atmosphere.Dust storms: Dust storms can pick up and transport large amounts of soil particles into the atmosphere.Forest fires: Forest fires can produce smoke that contains particulate matter.Sea spray: Waves crashing against the shore can release salt particles into the atmosphere.Biomass burning: The burning of forests, grasslands, and agricultural land can release particulate matter into the atmosphere.Biogenic emissions: Trees, plants, and other living organisms release organic particles into the atmosphere through processes such as respiration and decay.Here you can learn more about the atmosphere
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FILL IN THE BLANK. a food that excites the taste receptors that allow positively charged hydrogen ions to enter cells is likely to have a _______ taste.
A food that excites the taste receptors that allow positively charged hydrogen ions to enter cells is likely to have a sour taste.
One of the original four basic taste qualities, sour taste has long been recognised as a distinct taste sensation and is uniformly unfavourable across a wide range of species. It is elicited by low pH.
It is typically accepted that it originated for the purpose of detecting acids in underripe fruit and damaged food. But despite years of research, the receptor, neurotransmitter, and circuits for sour taste have only lately been discovered.
Since ancient times, it has been understood that one of the fundamental taste characteristics sensed by the tongue is sour, the flavor generated by lemons and other acids. However, it is unknown how sour taste transduction and information processing work.
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A food that excites the taste receptors that allow positively charged hydrogen ions to enter cells is likely to have a sour taste.
The sour taste is one of the five basic tastes, along with sweet, salty, bitter, and umami. Sourness is perceived when positively charged hydrogen ions (H+) enter the taste receptor cells in the mouth, leading to an electrical signal that is transmitted to the brain. The sour taste is often associated with acidic substances, such as lemon juice or vinegar, which have a low pH and a high concentration of hydrogen ions.
The sour taste helps to detect the acidity of foods, which can be an indicator of spoilage. In general, sourness is an important sensory cue that helps to regulate food intake and maintain acid-base balance in the body. For example, sourness may stimulate saliva production, which can help to neutralize acids in the mouth and protect the teeth.
In conclusion, sour taste is the result of the detection of positively charged hydrogen ions (H+) by taste receptor cells, leading to an electrical signal that is transmitted to the brain. The sour taste is an important sensory cue that helps to detect acidity and regulate food intake.
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what fraction of the neutron's kinetic energy is transferred to the carbon nucleus? (the mass of the carbon nucleus is about 12.0 times the mass of the neutron.) incorrect: your answer is incorrect.
The fraction of the neutron's kinetic energy that is transferred to the carbon nucleus in a collision can be calculated using the law of conservation of energy and the law of conservation of momentum. The two laws state that the total energy and momentum of a system are conserved before and after a collision.
In a collision between a neutron and a carbon nucleus, the kinetic energy of the neutron is converted into kinetic energy of the carbon nucleus and potential energy, which is stored in the new bonds formed between the neutron and the nucleus.
The fraction of the neutron's kinetic energy that is transferred to the carbon nucleus can be calculated as follows:
KE_carbon = (m_carbon / (m_carbon + m_neutron)) * KE_neutron
where m_carbon is the mass of the carbon nucleus (12.0 times the mass of the neutron), m_neutron is the mass of the neutron, and KE_neutron is the initial kinetic energy of the neutron. KE_carbon is the kinetic energy of the carbon nucleus after the collision.
The fraction of the neutron's kinetic energy transferred to the carbon nucleus can be calculated as KE_carbon / KE_neutron.
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What is hydration? What is the heat of hydration?
Answer:
he heat generated when water reacts in contact with the cement powder
Explanation:
oxygen and sulfur have similar chemical properties because both elements have six electrons in their outermost electron shell. both elements form molecules with two hydrogen atoms, water (h2o) and hydrogen sulfide (h2s). water is a liquid, yet h2s is a gas, despite the fact that sulfur is much larger and heavier than oxygen. explain why this might be the case.
The difference in the physical states of oxygen and sulfur is due to the difference in the strength of the bonds between the elements and the hydrogen atoms.
What is hydrogen atoms?
Hydrogen atoms are the simplest and most abundant atom in the universe. They consist of a single proton and a single electron. Hydrogen atoms are among the building blocks of life, forming the basis of all living matter. Hydrogen is found in water, proteins, fats, carbohydrates, and DNA. It is also the main component of stars and gas planets in the universe. Hydrogen atoms are the lightest of all elements and are highly reactive, forming compounds with a wide variety of other elements. Because of their small size, hydrogen atoms are essential for many chemical and biological processes, such as the formation of water, the production of energy in cells, and the formation of chemical bonds. Hydrogen atoms are also used in industrial processes and to create fuel for transportation.
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I need urgent help please, im really bad at chemistry and i cant get a bad grade
The density of solid cr is 7. 15 g/cm3. How many atoms are present per cubic centimeter (cm3) of cr?.
There are 8.25 x [tex]10^{22}[/tex] atoms per cubic centimeter of solid Cr.
First, find the number of moles of Cr per cubic centimeter by using the density of Cr The formula for density is:
density = mass/volume
Now, by rearranging this formula to find the mass, and then use the molar mass of Cr to find the no. of moles:
mass = density x volume
moles = mass / molar mass
The volume of 1 cubic centimeter = [tex]1 cm^3[/tex].
The molar mass of Cr is 51.9961 g/mol.
So,
mass = [tex]7.15 g/cm^3[/tex] x [tex]1 cm^3[/tex] = 7.15 g
moles = 7.15 g / 51.9961 g/mol = 0.1373 mol
Next, we can find the number of atoms per mole of Cr. One mole of Cr contains Avogadro's number of atoms, which is 6.022 x [tex]10^{23}[/tex] atoms/mol. So,
number of atoms = Avogadro's number x moles
= 6.022 x [tex]10^{23}[/tex] atoms/mol x 0.1373 mol
= 8.25 x [tex]10^{22}[/tex] atoms
Therefore, there are 8.25 x [tex]10^{22}[/tex] atoms per cubic centimeter of solid Cr.
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Why Ammonium Chloride formula is NH4Cl?
Ammonium chloride (NH4Cl), also known as 'sal ammoniac', is a salt of ammonia and hydrogen chloride. Its most common applications are as a nitrogen source in fertilisers and as an electrolyte in dry cells.
What are the uses of Ammonium chloride (NH4Cl)?
Ammonium chloride (NH4Cl) has several uses, including:
As a fertilizer, it is used to supply nitrogen to crops.In the food industry, it is used as a food additive and a source of salt.In the textile industry, it is used in printing and dyeing processes.It is also used as a fire extinguisher in laboratory settings.In electroplating, it is used as a source of chloride ion.In batteries, it acts as an electrolyte to allow the flow of electrical charges.In refrigeration systems, it is used as a refrigerant.As a curing agent, it is used in the production of silicone resins.In the pharmaceutical industry, it is used as an expectorant and cough suppressant.To learn more about Ammonium chloride (NH4Cl), visit: https://brainly.com/question/12969993
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Rank the compounds in each group according to their reactivity toward electrophilic substitution. 1 = most reactive; 3 = least reactive. A. Benzonitrile p-methylbenzonitrile p-methoxybenzonitrile b. O-bromotoluene o-bromochlorobenzene bromobenzene
A. 1. Benzonitrile 2. p-methylbenzonitrile 3. p-methoxybenzonitrile
B. o-bromotoluene > bromobenzene > bromochlorobenzene
Alkyl,-OR,-NH2, and other activation groups on benzophenone make it more responsive to electrophilic substitution.
These are all electron density donating groups which will increase the electron density of the whole compound
Deactivating groups in benzene, such as halide, -CN, and -CHO, make it less reactive to electrophilic substitution.
These are all electron density withdrawing groups which will decrease the electron density of the whole compound
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For the reaction represented by the equation 2H2 + O2 → 2H2O, what is the mole ratio of H2 to H2O?
A. 1:2
B. 2:2
C. 2:1
The mole ratio of hydrogen to water in the given balanced chemical equation is 2:2.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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48 g of methane was burned in an excess of air. What mass of carbon dioxide would be produced in the reaction assuming complete combustion?.
Assuming complete combustion, the mass of carbon dioxide that's produced in the reaction would be 132 grams.
Combustion is a chemical reaction that involves the complete oxidation of the hydrocarbon. These reactions usually release carbon dioxide and water as products.
Combustion of methane or CH₄ can be written as follows:
CH₄ + 2 O₂ -> CO₂ + 2 H₂O
Based on the question, the amount of methane is 48 g.
Molar mass of methane = 16 g/molMolar mass of carbon dioxide or CO₂ = 44 g/molThat means, in that reaction, 16 grams of methane produces 44 grams of carbon dioxide.
Therefore, 48 grams of methane would produce:
(44 / 16) * 48
= 132 grams
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How to rank alkenes in order of increasing heat of hydrogenation?
Considering the least stable object in the figure above, hydrogenation requires greater heat. B>A>C>D is the order in which heat evolved.
Which hydrogenation do you mean?When hydrogen molecules are utilized to saturate organic compounds, the process is known as hydrogenation. Regardless of the type of hydrocarbon, this process works best under specific catalytic conditions and under controlled temperatures.
In a hydrogenation reaction, what happens?Introduction. Processes like hydrogenation are an illustration of just an alkene addition reaction. An alkene undergoes a hydrogenation reaction, which produces a saturated alkane by adding two hydrogen atoms across the double bond.
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Bam added 8. 05 g of cscl to 36. 66 ml of h2o. Calculate the concentration of bam's solution in units of g solute/100 g solvent.
We can calculate the concentration by using Molar formula. So we can conclude that the concentration of bam's solution in units of g solute/100 g solvent is 1,3043 Molar.
In the term of chemistry, concentration generally can be defined as the abundance of a constituent divided by the total volume of a mixture.
If Bam added 8,05 g of CsCl to 36,66 ml of [tex]H_2O[/tex], so we can calculate the concentration with formula:
M = [tex]\frac{mass of solute}{Mr solute}x\frac{1000}{volume solvent in ml}[/tex]
M (concentration) of solute in g solute/100 g solvent = [tex]\frac{8,05 g}{168.36 g/mol} x\frac{1000}{36,66 ml}[/tex]
M (concentration) of solute in g solute/100 g solvent = 1,3043 Molar
So we can conclude that he concentration of bam's solution in units of g solute/100 g solvent is 1,3043 Molar.
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True or False: After completing the task experiment, the velocity of the cart does not change.
After completing the task experiment, the velocity of the cart does not change is referred to as a true statement.
What is velocity?
This is referred to as the rate of change of the object's position with respect to a frame of reference and time.
Since we were told that the experiment had been completed , then we can assume that the cart is at a state of rest which therefore means that there will be no change in its velocity and is therefore the reason why true was chosen as the correct choice.
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How the temperature changes with the height in the troposphere?
In reaction, the temperature in the troposphere falls with height.
In essence, the atmosphere is a shield of gases that protects all life on Earth by keeping temperatures within a narrow range and obstructing the sun's damaging rays. In essence, there is no distinction between the atmosphere and the outside world. The five separate layers of the atmosphere are created by the variations in temperature that occur with height. Following is a list of the five different layers:
Exosphere, Thermosphere, Mesosphere, Stratosphere, Troposphere
The troposphere, which starts at the ground and rises to an altitude of roughly 10 kilometres above sea level, is the lowest layer of the atmosphere. It makes up 75% of the atmosphere's total air. The atmosphere distributes itself according to gravity, thus generally speaking, the temperature drops as you go up in height. With height, temperatures in the troposphere drop. This is due to the gas's low solar radiation absorption rate. Additionally, the ground takes in this radiation and heats the atmosphere through conduction and convection.
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Using the reagents below, list in order (by letter, no period) those necessary to prepare tert-butyl alcohol from 2-methylpropane.Note: Not all spaces provided may be needed. Type "na" in any space where you have no reagent.a. Br2, heat, lightb. Br2, darkc. NaOHd. CH3CH2Bre. H2O, H2SO4f. HBrg. NaOEt, EtOH
B) Br2,dark is necessary to prepare tert-butyl alcohol from 2-methylpropane.
This process involves the bromination of 2-methylpropane using bromine (Br2) in the dark to produce 2-bromo-2-methylpropane. This reaction can be carried out using a Br2/CCl4 mixture, which allows for the bromination to occur without the formation of by-products due to exposure to light. The reaction mechanism involves the formation of a carbocation intermediate, which is then attacked by bromine to produce the brominated product. The 2-bromo-2-methylpropane can then be converted to tert-butyl alcohol through a series of hydrolysis and reduction reactions, using reagents such as H2O, H2SO4, NaOEt, EtOH, etc. However, the specific reagents and reaction conditions will depend on the desired yield, efficiency, and selectivity of the reaction.
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