DUMP molecule serve as immediate precursor for synthesising dttp.
What is DUMP molecule?Deoxyuridine monophosphate (dUMP) is a deoxygenated form of uridine monophosphate (UMP) that serves as a precursor to deoxythymidine monophosphate (dTMP), a component of DNA nucleotide biosynthesis. UMP is deoxygenated to dUMP by replacing the hydroxyl group at ribose's 2' carbon with a hydrogen.Deoxyuridine monophosphate (dUMP) is a deoxynucleotide that is also known as deoxyuridylic acid or deoxyuridylate in its conjugate acid and conjugate base forms. It belongs to the pyrimidine 2'-deoxyribonucleoside monophosphates class of organic compounds.Thymidylate synthase, an enzyme that interacts with dCMP deaminase in the multienzyme complex responsible for deoxynucleotide biosynthesis, converts dUMP to dTMP. Human dCMP deaminase is hexameric, with 178 amino acids and a zinc-binding domain on each subunit.To learn more about molecules refer to :
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why does the simple distillation of liquids such as pentane, hexane show broad range of boiling point
If the components have boiling points that are significantly different from one another (by more than 100 °C), a simple distillation is utilized.
What is simple distillation?If the components have boiling points that are significantly different from one another (by more than 100 °C), a simple distillation is utilized. However, if a straightforward distillation is performed on a mixture where the constituents have boiling points that are more similar to one another (less than a 100 °C difference in boiling points), it will not be able to thoroughly purify the mixture.If the components of a mixture have considerably different boiling points, distillation, a procedure for purifying liquids, can separate the components. In a distillation, a liquid is heated in a "distilling flask," after which the vapors move to another area of the device and are captured.To learn more about simple distillation refer to:
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What is the hot holding temperature for fried rice?.
The hot holding temperature for fried rice is 135°F or above.
Rice, pasta, and other plant-based foods that are intended for hot holding must be cooked to at least 135°F. When food is discovered to be below the recommended safe cooking temperatures: - Continue cooking the meal until the required temperature is reached.
Foods stored at hazardous temperatures encourage the growth of bacteria and other germs that can lead to food-borne illness. The practice of "hot holding" refers to keeping hot food prepared for public consumption. When food is kept at high temperatures, hot holding inhibits the growth of bacteria. This reduces the possibility that someone will become ill after consuming food.
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at a certain temperature and pressure, 1 l of co2 gas weighs 2.05 g. what is the mass of 1 l of ch4 gas at the same temperature and pressure?
The mass of 1 L of CH₄ gas at the same temperature and pressure as 1 L of CO₂ gas that weighs 2.05 g is 0.744 g
The mass of 1 L of CH₄ gas can be calculate as follows:
Based on Avogadro's Law, the volume of an ideal gas is directly proportional to the number of moles (or number of molecules) of that gas at constant temperature.
Gas volume does not depend on gas type
Using this law, we can change the state like this:
CO₂ moles = CH₄ moles (because they occupy the same volume).
first we must find the CO₂ moles
n = g / Molar mass
nCO₂ = 2.05 / 44 g = 0. 0465 moles
so we can find mass of CH₄
g CH₄ = n X mass molar
gCH₄ = 0. 0465 moles X 16 g/mol
g CH₄ = 0.744 g
Therefore, the mass of 1 L of CH₄ gas at the same temperature and pressure as 1 L of CO₂ gas that weighs 2.05 g is 0.744 g
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identify the major product that is obtained when methane is treated with excess cl2 and irradiated with uv lith
Chloromethane [tex](CH_{3}Cl)[/tex] is created when a combination of methane [tex](CH_{4})[/tex] and chlorine[tex](Cl_{2})[/tex] is exposed to ultraviolet light through a substitution reaction.
[tex]CH_{4} + Cl_{2} (excess) + UV = CH_{3}Cl[/tex].
What is Substitution reaction?
An atom, ion, or group of atoms or ions in a molecule is replaced by another atom, ion, or group in this class of chemical processes.
What is Ultraviolet light?
A higher frequency and shorter wavelength than visible light, ultraviolet (UV) radiation has a wavelength range of 100–400 nm. The sun is a natural source of UV radiation, but it can also be produced artificially by sources utilized in business, industry, and leisure.
What is Chloromethane?
Methyl chloride is another name for chloromethane. It is an uncoloured, transparent gas. Only when concentrations that could be dangerous are present does it emit a slight, sweet smell. It is incredibly combustible and heavier than air.
Chloromethane [tex](CH_{3}Cl)[/tex] is the major product.
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The crystal structure of NaBr is represented in the diagram above. Which statement correctly compares crystalline NaBr(s) to molten NaBr(l) in terms of electrical conductivity?
There are no free electrons or other charged particles that can migrate to carry an electrical current in crystalline NaBr. Sodium bromide, however, possesses freely moving ions that can conduct an electric current when it is molten.
An inorganic substance with the formula NaBr is sodium bromide. It is a white, crystalline substance with a high melting point that resembles sodium chloride. It has numerous uses and is a common source of the bromide ion. Crystalline NaBr lacks the electrons necessary to conduct electricity. Still, molten NaBr is formed of freely flowing Na positive ions and Br negative ions, allowing it to be an excellent conductor of electricity.
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if you have 0.200 mol of a compound in a 0.275 m solution, what is the volume (in l) of the solution?
a 7.14-g sample of a diprotic acid requires 109.5 ml of a 0.750 m naoh solution for complete neutralization. determine the molar mass of the acid.
Molar Mass of the Acid = 117.7gm
Number of milli moles of NaOH in 109.5 ml of 0.750 M solution = 109.5 x 0.750 =82.125
Since the acid is a diprotic acid 82.125 moles of NaOH will be neutralized by (82.125/2) = 41.06moles of the (Diprotic acid).
H2X + 2NaOH ===> Na2X + 2 H2O
Therefore 41.06 moles = 4.9 g
1000moles of the Diprotic acid = 4.9x (1000/41.06)
Molar Mass of the Acid = 117.7gm
A proton is a positively charged hydrogen atom, while an acid is a compound that releases a proton. Acids that are able to release more than a single proton are known as polyprotic acids. Let's take a moment to break down that term: The root '-prot-' is derived from the word 'proton,' and the prefix 'poly-' is Greek for 'many.' Thus, polyprotic acids have many protons.
One particular kind of polyprotic acid is diprotic acid. If we break down the term 'diprotic' the same as before, the prefix '-di' is Greek for 'two.' Thus, just as the prefix suggests, diprotic acids have two protons to donate. Sulfuric acid, hydrogen sulfide, carbonic acid, chromic acid, and oxalic acid are all examples of diprotic acids.
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For each of the following precipitation reactions, calculate how many grams of the first reactant are necessary to completely react with 17.3 g of the second reactant.
Part A
2KI(aq)+Pb(NO3)2(aq)→PbI2(s)+2KNO3(aq)
m = 17.3
g
SubmitMy AnswersGive Up
Correct
Part B
Na2CO3(aq)+CuCl2(aq)→CuCO3(s)+2NaCl(aq)
m = g
SubmitMy AnswersGive Up
Part C
K2SO4(aq)+Sr(NO3)2(aq)→SrSO4(s)+2KNO3(aq)
m = g
From the stoichiometry of the reaction;
A) The mass of potassium iodide reacted is 17.26 g
B) The mass of sodium carbonate reacted is 13.78 g
C) The mass of the potassium sulfate reacted is 13.92 g.
What is a precipitation reaction?We define a precipitation reaction as one in which there is a solid product that can be obtained after the mixing of two aqueous reactants. Hence, if we obtain a solid product after the reaction of two aqueous reactants, the solid product is called a precipitate.
Part A
Number of moles of lead II nitrate = 17.3 g/331 g/mol = 0.052 moles
If 2 moles of the potassium iodide reacts with 1 mole of lead II nitrate
x moles of potassium iodide reacts with 0.052 moles of lead II nitrate
x = 2 * 0.052 moles /1 mole
x = 0.104 moles
Mass of the potassium iodide = 0.104 moles * 166 g/mol
= 17.26 g
Part B
Number of moles of copper II chloride = 17.3 g /134 g/mol = 0.13 moles
Since 1 mole of sodium carbonate reacts with 1 mole of copper II chloride
x moles of sodium carbonate reacts with 0.13 moles of copper II chloride
x = 0.13 moles
Mass of sodium carbonate = 0.13 moles * 106 g/mol = 13.78 g
Part C
Number of moles of strontium nitrate = 17.3 g /212 g/mol = 0.08 moles
If the reaction is 1:1
Mass of potassium sulfate = 0.08 moles * 174 g/mol = 13.92 g
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How does the setting influence characterization in the text?.
The environment can distinguish your character. Characters with uncommon backgrounds will always be seen as strange, whether or not they actually are.
What influence does chemistry have on our lives?Chemistry provides for all of our basic needs, including food, clothing, shelter, health, energy, and clean air, water, and soil. Chemical technologies provide new solutions to problems with hygiene, resources, especially energy usage, which enhance our quality of life in many ways.
What does the word "influence" mean?The term in current usage often refers to the capacity to influence someone or something, particularly the capacity to bring about changes without exerting direct pressure.
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while he is moving a container of a radioactive liquid, some of the liquid splashed onto the technician's arm. this situation is best be described as:
while he is moving a container of a radioactive liquid, some of the liquid splashed onto the technician's arm is Primary contamination.
Ionizing radiation is the kind of energy that emanates from radioactive materials. Radiation energy may be absorbed by the body when it comes into touch with a person. The following substances are naturally occurring radioactive elements in earth.
When some radioactive elements decay or break down, an energy known as alpha radiation is emitted. Examples of naturally occurring radioactive elements in the Earth's crust include uranium and thorium. These two substances progressively alter over billions of years, yielding decay byproducts including radon and radium. Energy is discharged throughout this process. Alpha radiation is one manifestation of this energy.
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Consider the insoluble compound nickel(II) hydroxide, Ni(OH)_2. The nickel ion also forms a complex with cyanide ions. Write a balanced net ionic equation to show why the solubility of Ni(OH)_2 (s) increases in the presence of cyanide ions and calculate the equilibrium constant for this reaction. For Ni(CN)_4^2-, K_f = 1.0 Times 10^31. Use the pull-down boxes to specify states such as (aq) or (s).
The pull-down boxes to specify states such as (aq) or (s) conclude that equilibrium constant for this reaction is 2.8*10¹⁵.
The following chemical reaction equation results in the formation of the nickel cyanide complex.
Ni(OH)(s)+4CN=={Ni(CN)²₄]+2OH
We know that,
K = Kf.Ksp
We are given that, Kf=1*10³¹
and, Ksp=2.8*10⁻¹⁶
K = Kf.Ksp
K = (1*10³¹)*(2.8*10⁻¹⁶)
= 2.8*10¹⁵
Thus, we can conclude that equilibrium constant for this reaction is 2.8*10¹⁵.
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A voltaic cell is prepared where copper metal is oxidized to copper(II) and silver(1) is reduced to silver metal. Which of the following reactions occurs at the anode? A) 2 Cu(s) → 2 Cu2+(aq) + e B) Cu2+(aq) + 2e - Cu(s) C) Cu(s) → Cu2+(aq) + 2e D) Ag (aq) + e → Ag(s) E) Ag(s) → Agt(aq) + e
According to the given statement The reaction which occurs at the anode is Cu(s) → Cu2+ (aq) + 2e-.
How does an voltaic cell work?Galvanic (or voltaic) cells produce an electric current through a redox process that is thermodynamically favorable. Each half-reaction occurs in its own compartment, or half-cell, which also contains an electrode. The anode is the electrodes where oxidation takes place, and the cathode is the electrodes where reduction takes place.
Where are voltaic cells used?A redox reaction results in the production of electricity via a voltaic cell. The half reactions' reduction potentials can be used to calculate the voltage of the a voltaic cell. Batteries are made from voltaic cells and are a practical way to store electricity.
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What is the relationship between latent heat and water?
Give an example
The relationship between latent heat and water is that latent heat is the temperature required to change water into any of its other states.
What is latent heat?Latent heat is the heat that is released or absorbed accompanying a change of state or of phase without changing its temperature.
The latent heat that involves melting a solid or freezing a liquid is called the latent heat of fusion while the one involved with vaporizing a liquid or a solid or condensing a vapour is called the latent heat of vaporization.
Water has a relatively high specific heat, hence, it takes more energy to increase the temperature of water compared to other substances.
Examples of latent heat involving water are as follows:
The heat of freezing is the amount of thermal energy given off as a water freezes into ice The heat of vaporization is the amount of thermal energy that must be added to change a water to a vapourLearn more about latent heat at: https://brainly.com/question/13428994
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calculate the volume of 3.00m naoh (the more concentrated solution) needed to prepare 300. ml of 0.100m naoh (the more dilute solution).
We know that,
1000 ml = 1 L
Molar mass of NaOH = (1 x 22.990 + 1x 16.0 + 1 x 1.008) = 39.998 g/mol
Preparation of solution
The solubility of NaOH in water at 25 deg. C is 1000 g/L or 1 g/ml.
First, we have to know the amount of NaOH required for the preparation of the solution.
To do that, we calculate the number of moles in 300 ml of 0.100 M NaOH solution = (volume in L x Molarity of solution) = (0.3 L x 1 M) =0.3 mol.
Next, by definition, moles of solute = (mass of solute/molar mass of solute).
That is, 0.3 mol = (mass of NaOH/39.998 g/mol).
Therefore, mass of NaOH required for the preparation of solution = (0.3 mol x 39.998 g/mol)= 11.994 g
Thus, you weigh out 11.994 g of NaOH in a clean and dry glass beaker quickly in a fine balance. This is to prevent the water vapour and CO2 of the atmosphere from contaminating the NaOH as it is hygroscopic in nature.
Dissolve it in the beaker with 25 ml of distilled or deionized water.
Stir the solution with a clean glass rod to dissolve it further and allow it to cool down before any further dilution.
Transfer the solution carefully to a 300 ml volumetric flask.
Rinse the beaker and the glass rod with 15 ml of distilled or deionized water and transfer it to the flask.
Top up the flask carefully to the mark with more distilled or deionized water.
Stopper the flask and mix well.
This is your 300 ml of 0.100 M NaOH solution.
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would the root-mean-square (rms) speed of a hydrogen molecule be equal to that of an oxygen molecule in a gas at 300 k? g
At 300 k, the root-mean-square (rms) speed of a hydrogen molecule in a gas is equal to that of an oxygen molecule. the hydrogen molecule is 18.75 K in temperature.
Any molecule's root mean square velocity can be determined using the formula below:
μrms=√3RT/M
Since the RMS speed of two oxygen and hydrogen molecules is the same, equation (I) can be expressed as follows:
√3RT1/M1=√3RT2/M2
√T1/M1=√T2/M2
The molar mass. of oxygen molecule is 32.00 g/mol,
The molar mass. of hydrogen molecule. is 2.00 g/mol.
Substitute the known values in equation .
√300K/32.00g/mol=√T2/2.00g/mol
Squaring both the sides
T2=18.75k
The most basic molecule is a hydrogen molecule. Electrostatic forces hold together its two protons and two electrons, which are held together. Similar to atomic hydrogen, the assemblage can exist at various energies. The hydrogen atom H is one. One hydrogen molecule, H2, consists of two hydrogen atoms. Two hydrogen atoms make up the symbol 2H.
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What hypothesis did the Miller-Urey experiment support?.
The Miller-Urey experiment provides evidence that the nucleotide base adenine can be created by combining hydrogen cyanide and ammonia in water. Many further experiments were sparked by this one.
Joan Oro discovered in 1961 that mixing ammonia and hydrogen cyanide in water might produce the nucleotide base adenine. His work resulted in a significant amount of adenine, whose molecules were created from 5 molecules of HCN. Additionally, under these circumstances, a large number of ammonia atoms is produced from HCN and ammonia.
The chemical compound hydrogen cyanide, often known as prussic acid, has the formula HCN. It boils just a little bit over room temperature and is a colourless, incredibly deadly, combustible liquid.
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What is the strongest type of intermolecular force between solute and solvent in the following solution:
CH3Cl(g) in CH3OCH3(g)
A. metallic bonding
B. dipole-dipole
C. dipole-induced dipole
D. hydrogen bonding
E. ion-dipole
F. dispersion forces
B. dipole-dipole
The strongest type of intermolecular force between solute and solvent in the following solution CH3Cl(g) in CH3OCH3(g) is dipole - dipole.
The positive end of one polar molecule and the negative end of another polar molecule are attracted to one another by dipole-dipole forces. Strengths of dipole-dipole forces per mole range from 5 kJ to 20 kJ.
Examples of polar compounds that interact dipole-dipole include hydrogen chloride (HCl), carboxylic acids (such as acetic acid), and amino acids. A polar molecule's positive end will pull another molecule's negative end and change the other molecule's location.
Hence, dipole dipole is the strongest type of intermolecular force between solute and solvent in the following solution CH3Cl(g) in CH3OCH3(g) .
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Does hydrogen and oxygen form an ionic bond?.
FALSE; water's hydrogen-oxygen bond is a covalent one. This is due to the insufficiency of the difference in electronegativity between these two elements.
What is electronegativity, and what is an example?The capacity of an atom to draw in an electron binding pair determines its electronegativity. The Pauling scale is the most often used. With a value of 4.0 given to fluorine, cesium and francium are really the least electronegative elements, with a value of 0.7.
What is electronegativity so why is it significant?An atom's propensity to draw electrons of electron density to itself is measured by its electronegativity. It determines that how shared electrons are allocated among the two atoms in some kind of a bond. The bigger an atom's electronegativity, the more strongly it is attracted toward the atoms in its bonds.
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Refer to the figure below. Which of the following statements is TRUE for a sample moving from point A to point B on the diagram?
Choose one:
A. The sample heats up.
B. The sample begins to melt due to decompression.
C. The sample stays at the same depth within the Earth.
D. The sample does not change its physical state because its temperature has not changed.
Answer: D
According to the given statement The sample begins to melt due to decompression.
The correct option is B.
What is temperature called?The thawing and boiling extremes of water serve as the foundation for the two most popular test temperatures, Celsius (C) and Fahrenheit (F). There are 100 steps between the two locations on the Celsius scale and 180 on the Fahrenheit scale. Additionally, scientists employ the Kelvin units of the International System (K).
How is temperature gauged?Thermometers are used to measure the air's temperature. Common thermometers have a glass rod inside of which is a very thin tube. A liquid is delivered to the tube from a storage, or "bulb," at the thermometer's base.
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What is irony bring out the elements of irony in the story?.
Irony: a situation in which there is a contrast between expectation and reality.Irony can take many different forms.
The verbal irony, dramatic irony, and situational irony are the three types .Irony occurs in literature AND in life whenever a person says something or does something that departs from what they (or we) expect them to say or do.
Irony in the story 'Dusk':
Ironically, the main character, who thinks he is a good character judge, is duped by the young man who sat next to him on the park seat.
According to Gortsby, darkness is a time when dejected and shady people emerge.
The term irony has its roots in the Greek comic character Eiron, a clever underdog who by his wit repeatedly triumphs over the boastful character Alazon. The Socratic irony of the Platonic dialogues derives from this comic origin.
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Can you discount alcohol in Texas?.
According to TABC laws on alcohol use, it is illegal to sell alcohol in many places in texas thus no you can't discount alcohol in Texas.
Alcohol is prohibited in many parts of Texas thus anyone under the age of 21 may not be sold alcohol, including adults. Beer and wine may be purchased from licensed establishments Monday through Friday from 7:00 a.m. to midnight. On Saturday, they may sell them from 7:00 a.m. until 1:00 p.m. Additionally, they may sell on Sundays from noon to midnight. Only liquor stores, nevertheless, are allowed to sell distilled alcohol. On Sundays before noon, restaurants are allowed to serve alcoholic beverages with food. On the other hand, it is prohibited to sell any alcoholic beverages with a volume of more than 17% on Sunday (ABV). On Thanksgiving Day, New Year's Day, or Christmas Day, no establishment may offer any alcoholic beverages. Alcohol from a single producer cannot be sold by a restaurant or other retailer. And alcohol cannot be sold by food trucks.
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A compound compoed of only carbon and hydrogen i 7. 743% hydrogen by ma. Propoe a Lewi tructure for the compound
Due to the hydrogen atom's single valence electron, it is represented as H.
What does hydrogen's Lewis structure look like?Due to the hydrogen atom's single valence electron, it is represented as H. Lewis electron-dot structures can be used to represent the structures of molecules that are joined by covalent bonds.
A hydrogen ion is the nucleus of a hydrogen atom that has lost contact with its electron in orbit. A proton, or a particle with a single positive electric charge, is the building block of hydrogen. So a single hydrogen ion, denoted by the symbol H+, is typically used to represent a proton.
It's marked H+. The name of the hydrogen cation varies depending on the isotope: The term "hydron" refers to any hydrogen isotope's positive ion (H+). 1H+ for proton (i.e. the cation of protium)
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calculate the concentration of a. sodium phosphate in a 20.5 ml aliquot sample that is added to 75.0 ml of water
The concentration should be about [tex]$1 / 6$[/tex] of the original [tex]$(1 / 6 \times 4.2=0.7)$[/tex]
What is meant by concentration of molecule?A chemical's concentration in a solution describes how many of its molecules are dispersed throughout a relatively small volume of the solution. The amount of solute that has been dissolved in a specific volume of solvent or solution is measured by the solution's concentration. A solution that contains a significant amount of dissolved solute is said to be concentrated. The mass of the solute in a given volume of solution or the number of moles of the solute in a given volume of solution are the two fundamental methods for reporting the concentration of a solute in a solvent.The most common way to solve this problem is to use the formula
[tex]$$c_1 V_1=c_2 V_2$$[/tex]
In this problem,
[tex]&c_1=4.2 \mathrm{~mol} / \mathrm{L} ; V_1=45.0 \mathrm{~mL} \\[/tex]
[tex]&c_2=? ; V_2=250 \mathrm{~mL} \\[/tex]
[tex]&c_2=c_1 \times \frac{V_1}{V_2}=4.2 \mathrm{~mol} / \mathrm{L} \times \frac{45.0 \mathrm{~mL}}{250 \mathrm{~mL}}=0.76 \mathrm{~mol} / \mathrm{L}[/tex]
You are increasing the volume by a factor of about 6 , so the concentration should be about [tex]$1 / 6$[/tex] of the original [tex]$(1 / 6 \times 4.2=0.7)$[/tex]
The complete question is,
What would be the concentration of a solution made by diluting 45.0 mL of 4.2 M KOH to 250 mL?
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apple offered to return $100 to consumers who purchased an apple computer and a printer during a three-month promotional period. consumers provided proof of purchase in exchange for a (fill in the blank)
Consumers provided proof of purchase in exchange for a rebate
Purchasing is the technique a commercial enterprise or organization makes use of to acquire items or offerings to accomplish its dreams. Although there are several agencies that try and set requirements for the shopping procedure, methods can range substantially among businesses.
Kind of purchases :
* Private Purchases.
* Mercantile purchasing.
* Business shopping.
* Institutionalized or authorities purchasing.
Purchasing is becoming a middle competency of the firm, locating and growing providers and bringing in expertise that is notably valued through the company. Buying is normally responsible for spending greater than 50 percent of all of the sales the firm receives as income from income.
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what is the molarity of a solution when 2.48 mol nacl is dissolved in water to make 2.75 l of solution
The molarity of the solution is 0.09018.
What is molarity ?
The quantity of a solute in a liter of a solution is known as its molarity.
What is moles?
The mass in grammes of one mole of a substance is its molar mass. The chemical unit's atomic weight, expressed in atomic mass units, determines this substance's mass. A mole of silver, for instance, weighs 107.8682 amu, or 107.8682 grams.
Molarity of the solution is defined as
molarity = moles of solute/ volumes of solution in liter
moles= mass/ molar mass
1) 0.248M
= 0.248/ 2.75= 0.09018
Therefore, the molarity of the solution is 0.09018.
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which of the following are correct ways of writing the reaction of an alkene with hydrobromic acid in the presence of a peroxide to form an alkyl halide?
The following are correct ways of writing the reaction of an alkene with hydrobromic acid in the presence of a peroxide to form an alkyl halide :
CH₃CH = CH₂ + HBr + peroxide -----> CH₃ - CH₂ - CH₂ -Br
Th alkene with hydrogen bromide in the presence of peroxide to form alkyl halide is knows as the anti - markovnikov's rule or called as peroxide effect. let us tale an example with propene, the reaction is given as :
CH₃CH = CH₂ + HBr + peroxide -----> CH₃ - CH₂ - CH₂ -Br
Thus, The following are correct ways of writing the reaction of an alkene with hydrobromic acid in the presence of a peroxide to form an alkyl halide :
CH₃CH = CH₂ + HBr + peroxide -----> CH₃ - CH₂ - CH₂ -Br
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The characteristics of two different types of reactions are shown below:
Reaction A: An atom loses electrons during the reaction. Reaction
B: An atom loses protons and neutrons during the reaction. Which statement is true about the two reactions?
A. Both reactions retain the identity of the elements.
B. Both reactions change the identity of the elements.
C. Reaction A produces more energy than Reaction B.
D. Reaction B produces more energy than Reaction A.
The statement that is true about the two reactions is that: Reaction A produces more energy than Reaction B (option C).
What is a chemical reaction?Chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.
A chemical reaction involves the conversion of substances called reactants to other substances called products usually as a result of bond breaking.
According to this question, two reactions occur as described below:
Reaction A: An atom loses electrons during the reactionReaction B: An atom loses protons and neutrons during the reactionIf an atom loses electrons, it becomes positively charged, hence, releasing energy into surroundings. On the other hand, an atom loses protons and neutrons in reaction B, this means that the identity of the atom will be changed because the proton number will be changed.
Therefore, it can be said that reaction A will synthesize more energy than reaction B because electrons are lost in the former.
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the following three organic compounds have a similar molar mass. place them in order of increasing boiling point (boiling point depends on the type of imf). formaldehyde methanol ethane h2c
Formaldehyde is a colorless, combustible gas that has a strong, pungent smell when it is at room temperature. Formaldehyde has a - 19.1 °C boiling point. 37% unrestrained
Explain about the Formaldehyde?A wide range of industries employ formaldehyde. It is used in labs, building materials, textiles, embalming, disinfectants, glues and resins, dyes, and other products.
The throat, nose, eyes, and skin can all become irritated by formaldehyde. Certain cancer types may be brought on by high exposure levels. Learn more about the harm exposure to formaldehyde can do to your health from the Agency for Toxic Substances and Disease Registry.
Formaldehyde has been linked to myeloid leukaemia and a number of uncommon malignancies, including those of the paranasal sinuses, nasal cavity, and nasopharynx, according to studies of individuals exposed to high doses of the chemical, such as industrial employees and embalmers.
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what product would you expect to obtain from addition of cl2 to 1,2-dimethylcyclohexene? show the stereochemistry of the product.
The product obtained is 1,2-dichloro-1,2-dimethyl cyclohexane by the addition of cl2 to 1,2-dimethylecyclohexene.
This involves addition reaction. The reaction in which the addition of a molecule in a multiple bond that is double bond or triple bond to form the corresponding product is known as addition reaction. these are 3 types of addition reaction. free radical addition reaction, electrophilic addition reaction and nucleophilic addition reaction. When a unsaturated hydrocarbon react with some other element to form a single product, it is called as addition reaction. The addition of Cl2 to 1,2 -dimethyl cyclohexene is a type of anti-addiction with stereospecific. This reaction favors one stereoisomer over another. The reaction is stereospecific because the only anti product is formed and the product is complete absence. So, there is only one kind of stereoisomer created.
By the addition of Cl2 to 1,2-dimethyl cyclohexene, the product obtained is 1,2-dichloro-1,2-dimethyl cyclohexane.
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how many seconds will be required to produce 1.0 g of silver metal by the electrolysis of a agno3 solution using a current of 30 amps?
The time required to electrolyze molten metal at a current of 30.0 A to yield 1.00 g of silver metal is 90 seconds.
Number of moles = given mass = 1.0 = 0.0093
molar mass 108
According to the mole concept:
One mole of atoms contains 6.022 x 10²³ number of particles.
We know that:
charge of 1 electron = 1.6 x 10⁻¹⁹
Charge of 1 mol electron = 1.6 x 10⁻¹⁹ x 6.022 x 10²³ = 96500 C
AgNO₃⇒ Ag³⁺ +3NO₃⁻
At cathode : Ag³⁺ +3e⁻ ⇒ Ag
1 mol of silver is deposited as follows:
3 x 96500 = 289500 C
So 0.0093 moles of silver is deposited as
289500 C X 0.0093 =2692.35 C
1
Use the following formula to calculate the required time:
I= q/t
where,
I = current = 30 A
q = total charge = 2692.35 C
t = required time (seconds) = ?
Substituting the values into the above formula, we get:
t= q/1
t = 2692.35 C / 30 A
t = 89.745 ≈ 90 s
Therefore, the time required to electrolyze molten metal at a current of 30.0 A to yield 1.00 g of silver metal is 90 seconds.
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