If you purchase two new tires instead of four, you should put them on the rear means back side.
What should be done if you purchase only two tires?If you are here for a short answer on where the two new tires should be installed, always place the new tires on the rear when buying two tires instead of four. This is because more weight of car comes on the back tires so the new tires should be installed on the back tires of the car.
So we can conclude that If you purchase two new tires instead of four, you should put them on the rear means back side.
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In the reaction below green chlorine gas and brown iodine chloride forms yellow iodine trichloride cl2 (g) icl (l) ⇌ icl3 (s) if some chlorine is removed from the reaction, how will it affect the color of the mixture? a. it will become more green. b. it will not change. c. it will become more yellow. d. it will become more brown.
If some chlorine is removed from the reaction, It will become more green and brown.
According to the principle, if a reaction system is subjected to a constraint at its equilibrium, such as a change in concentration, volume, pressure, or temperature, the equilibrium position will alter in a way that the restriction is eliminated.
What happens to chlorine when it reacts?
Hydrochloric acid and chloric acid are created when chlorine combines with water. In sunlight, a separate process takes place when water and chlorine combine to produce oxygen and hydrochloric acid.Is chlorine green or Colourless?
At room temperature, chlorine is a gas that is yellow-green. It possesses the highest electron affinity and the third-highest electronegativity on the revised Pauling scale, behind only oxygen and fluorine, making it an exceptionally reactive element and a powerful oxidising agent.Learn more about chlorine
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How much energy, in kilojoules, is required to melt 20 kg of ice at 0°C?
The energy required to melt 20 kg of ice at 0°C is 6.68 kJ.
The enthalpy change for melting of an ice is called the enthalpy of fusion. Its value is 6.02 kJ/mol. This means for every mole of ice we must apply 6.02 kJ of heat for melting. The calculation of heat is done by following equation.
q = n×ΔH
q is heat n is number of molesΔH is change in enthapyin this problem we need to calculate heat needed to melt 20grams of ice at 0°C .
Calculation of moles of water,
Number of moles of water (n) = given mass/ molar mass = 20g/18.02g/mol
Number of moles of water (n) = 1.109 mole
heat or energy required = q = n×ΔH = 1.109 mole× 6.02 kJ/mol = 6.68 kJ
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The bluish color that makes the atmosphere of neptune so beautiful to the human eye is caused by the interaction of sunlight with what gas?
The bluish color that makes the atmosphere of neptune so beautiful to the human eye is caused by the interaction of sunlight with methane gas.
The compositions of Uranus but also Neptune are fairly similar at high altitudes. The existence of methane in both ice giants' upper atmospheres may be responsible for their blue hue. The majority of the red light that strikes the planets is absorbed by methane, giving the planets their blue appearance.
The blue marble occurrence of the faraway planet is actually a result of methane gas clouds. Methane is a gas that, despite making up a very small fraction of Neptune's atmosphere, absorbing red light's wavelengths while reflecting blue light outward.
Therefore, the bluish color that makes the atmosphere of neptune so beautiful to the human eye is caused by the interaction of sunlight with methane gas.
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You have twenty ml of a 90 mmol/liter solution of glucose. if you add forty ml of water, the concentration of glucose in the new solution will be:_____.
The concentration of glucose in the new solution will be
30 M mol/liter.
Subtract the solute's mass from the total volume of the solution. Using m as the solute's mass and V as the total volume of the solution, write out the equation C = m/V.
A concentrated solution is referred to as a stock solution since it will be diluted to a lesser concentration before usage. M₁V₁ = M₂V₂ is the dilution equation.
A diluted solution = stock solution.
M₁ is the stock solution's molarity.
M₂ stands for the diluted solution's molarity.
V1 is the volume of the starting solution.
V2 is the volume of the final solution.
M₁ = 90M mol/liter
V₁ = 20mL
V₂ = 40mL
Using the formula,
M₁V₁ = M₂V₂
20mL × 90 M mol/liter = 40mL × M₂
M₂ = 30 M mol/liter
Therefore, the concentration of glucose in the new solution will be
30 M mol/liter.
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If the freezing point depression for a solution is 2.5°c and kf = 4.5°c/m, what is the molality of the solution?
If the freezing point depression for a solution is 2.5°c and kf = 4.5°c/m, the molality of the solution is
m= 0.56m
What is molality?While molecular weight (MW) and molecular weight (MW) may be used to measure concentration, molecular weight (MW) and molecular weight (MW) is used to measure molecular weight and concentration, respectively.
What is the molality of the solution?Generally, the equation for of freezing point of depression with molality is mathematically given as
[tex]\Delta T_{f} = k_{f} *m[/tex]
Therefore
m = 2.5/4.5
m= 0.56m
In conclusion, the molality of the solution is 0.56m
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Why is an aqueous solution of potassium hydroxide an unsuitable medium for effecting the base promoted elimination of the E2 reaction procedure
The potassium hydroxide is an unsuitable medium because an aqueous solution medium is highly polar in nature, so there will be a high tendency for carbonation to be formed and prefer substitution reaction rather than an elimination reaction.
The potassium hydroxide is an unsuitable medium for effecting the base-promoted elimination due to the fact that alkoxide anions aren't only more basic than the pure hydroxyl group, but they may be also bulkier. The higher bulkiness makes it a worse nucleophile than hydroxyl and the higher basicity makes it better at E2 eliminations.
A substitution reaction is a form of Chemical reaction in which the functional group of 1 chemical compound is substituted by means of any other group or it's miles a reaction that involves the substitute of one atom or a molecule of a compound with another atom or molecule.
Carbonation is the chemical reaction of carbon dioxide to provide carbonates, bicarbonates, and carbonic acid. In chemistry, the term is sometimes used in place of carboxylation, which refers to the formation of carboxylic acids.
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3. A lab technician is preparing urea broth. It should be sterilized by filtration, he autoclaves it instead, just like he does for any other media. The high temperature of the autoclave causes the urea to break down. What color is the sterile urea broth when it comes out of the autoclave? but rstroedave tocave.
Urea get decomposed during autoclaving, because it is volatile. It is filter sterilized and added aseptically to your autoclave media.
Can urea be autoclaved?
Urea get decomposed during autoclaving, because it is volatile. It is filter sterilized and added aseptically to your autoclave media.What is autoclave sterilization?
In medical and laboratory settings, an autoclave is used to sterilise waste and lab supplies. Heat is used in the autoclave sterilisation process to eliminate bacteria and spores. Pressurized steam provides the heat.What is filter sterilization?
By using filtering, it is possible to exclude organisms based on their size. There are many different kinds of filtration methods, but membrane filtration is utilised to sterilise a system. Contaminants that are larger than the pore size are captured by membrane filtration on the membrane's surface.Learn more about autoclave media.
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Acetophenone was treated by one equivalent of lda, followed by one equivalent of \it{tert}-butyl bromide. what are the most likely reaction products?
The most likely reaction product when acetophenone was treated by one equivalent of LDA, followed by one equivalent of tert-butyl bromide.
The full form of LDA is the lithium diisopropyle amide. The enolates can acts as nucleophile in SN2 type reaction . Overall an alpha hydrogen is replaced with an alkyl group . This reaction is one of the more important for enolates because a carbon - carbon bond formed .
Example : when acetophenone was treated by one equivalent of LDA, which is base and abstract alpha hydrogen followed by one equivalent of tert-butyl bromide which gives tert-butyl bromide which is alkyl and such reaction is called alkylation.
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Write the chemical symbols for three different atoms or atomic cations with 25 electrons
Answer:
Three different atoms or atomic cations with 25 electrons = Mn ,Fe¹+ ,Co²+ ,Ni³+ ,Cu⁴+
Suppose protons were emitted rather than electrons. How would this affect the experiment?
Suppose protons were emitted rather than electrons then it affects the experiment as the mean velocity of proton will be less then mean velocity electron .
The mass of proton is greater than the mass of electrons but charge of electron is equal to the charge of proton . So , due to difference in the mass of electron and proton there will be some effects. We can conserve the electric energy which is equal to the qe .
The kinetic energy = 1/2[tex]mv^{2}[/tex]
Now changing the electric potential energy into kinetic energy
v = √2qe/m
The mean velocity of proton will be less then mean velocity electron .
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A salt solution contains ammonium cation (ka = 5.7 × 10^–10) and nitrite anion (kb = 1.4 × 10^–11) in equal proportions. The ph of the solution will be?
The ph of the solution will be acidic. It is because of the higher ka value of ammonia as compared to kb of nitrate
As we know, A salt solution contains ammonium cation (ka = 5.7 × 10^–10) and nitrite anion (kb = 1.4 × 10^–11) in equal proportions but the ka and kb are different.
As we see that the value of ka is higher than the kb that's why the ph level will be acidic.
Acidic solutions are sour in taste as compared to alkaline solutions.
We know that the ph scale basically ranges from 0 to 14. The ph solutions less than 7 are acidic and greater than 7 are basic.
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Explain the impact that changing the temperature has on a system in a state of dynamic equilibrium. what will happen when the temperature of an exothermic reaction mixture at equilibrium is increased?
An endothermic reaction is favored by raising the temperature of a system in dynamic equilibrium. The mechanism absorbs the increased heat to offset the alteration you made. An exothermic reaction is favored by a system's temperature falling while it is in dynamic equilibrium.
Which of these reactions is endothermic?Any chemical process that takes heat from its surroundings is said to be endothermic. The reaction's activation energy comes from the energy that was absorbed. This kind of reaction is characterized by its icy sensation.
How does an exothermic reaction work?An exothermic reaction is one in which energy is given off as heat or light. In contrast to an endothermic process, which draws energy from its surroundings, an exothermic reaction transfers energy into the environment.
What kind of reaction is an exothermic reaction?Materials like hydrocarbons reacting with oxygen to produce combustion products like water and carbon dioxide is an example of an exothermic process.
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Malic dehydrogenase is added to the aspartate aminotransferase (ast) reaction to catalyze the conversion of?
Malic dehydrogenase catalyzes the conversion of oxaloacetate to malate.
What is the mechanism of aspartate aminotransferase reaction?The transaminase enzyme known as aspartate aminotransferase (AST) is responsible for converting aspartate and alpha-ketoglutarate into oxaloacetate and glutamate.
Malate Dehydrogenase catalyzes Oxaloacetate to Malate Oxidation in the Coupled Reaction of AST Measurement.
What is the reaction of aspartate aminotransferase
I understand the question you are looking for is this:
Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of:
a. alpha-ketoglutarate to aspartate
b. alpha-ketoglutarate to malate
c. aspartate to oxaloacetate
d. oxaloacetate to malate
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Hello people ~
Volume of one mole of any gas at NTP is
(a) 11.2 litre
(b) 22.4 litre
(c) 10.2 litre
(d) 22.8 litre
Answer:
Volume of one mole of any gas at NTP is
(b) 22.4 litre
Answer:
22.4L
Explanation:
One mole of any gas at STP weighs 22.4L.
STP stands for Standard Temperature and pressure
273.15KPressure 1atmComplete and balance the molecular equation, including the phases, for the reaction of aqueous potassium sulfate, k2so4 , and aqueous strontium iodide, sri2.
The complete and balanced molecular equation is-
K₂SO₄(aq) + SrI₂(aq) → KI(aq)+ SrSO₄(s)
Both sides of the reaction must have an equal amount of atoms in each element to balance the equation.
What is a balanced chemical reaction?A balanced chemical reaction is one in which both the reactant and product sides of the reaction include an equal number of atoms from each of the constituent components. For the chemical equation to adhere to the Law of the conservation of mass, it must be balanced.An equation that has the same number of each type of atom on both sides of the arrow is said to represent a balanced chemical reaction. A chemical reaction is represented symbolically in writing by a chemical equation. The chemical(s) used as the reactant(s) are listed on the left and the chemical(s) used as the product(s) are listed on the right. A chemical reaction requires an equal number of atoms in the reactants and products because, according to the rule of conservation of mass, atoms cannot be generated or destroyed throughout the process.How to balance a molecular chemical equation?First of all, identify the most complicated or complex substances.If possible, start with that material and pick an element or elements that are present in only one reactant and one product. To get the same number of atoms of this element(s) on both sides, adjust the coefficients.If polyatomic ions are present on both sides of the chemical equation, they should be balanced as a whole.The remaining atoms are then balanced, typically ending with the substance that is the least complicated and, if necessary, employing fractional coefficients. In order to get whole numbers for the coefficients if a fractional coefficient was used, multiply both sides of the equation by the denominator.To learn more about Molecular equation click on-
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Balanced molecular equation is :
K₂SO₄(aq) + SrI₂(aq) → KI(aq)+ SrSO₄(s)
What is Balanced equation?
If both the reactants and the products of a chemical reaction have the same number of atoms and total charge, the equation for the reaction is said to be balanced. In other words, the mass and charge balances on both sides of the reaction are equal.The equation must be balanced so that each type of atom appears in equal amounts on both the left and right sides of the arrow. This is accomplished by altering the compounds' coefficients (numbers placed in front of compound formulas).In an imbalanced chemical equation, the reactants and products of a reaction are provided, but the amounts required to satisfy the conservation of mass are not given.Learn more about the balanced equation with the help of the given link:
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4. How much energy will it take to raise the temperature of 75.0 g of water from 20.0 °C to 55.0 °C?
Specific heat of water = 4.184 J/(g°C)
A. 63 J
B. 630 J
C. 2630 J
D. 1.1 x 10¹ J
Answer:
1.1 x 10⁴ J
Explanation:
To calculate eth energy needed, you need to use the following equation:
Q = mcΔT
In this equation,
-----> Q = energy/heat (J)
-----> m = mass (g)
-----> c = specific heat (4.184 J/g°C)
-----> ΔT = change in temperature (°C)
You can plug the given values into the equation and solve.
Q = mcΔT
Q = (75.0 g)(4.184 J/g°C)(55.0 °C - 20.0 °C)
Q = (75.0 g)(4.184 J/g°C)(35.0)
Q = 11,000 J
Q = 1.1 x 10⁴ J
It takes 11. 2 kj of energy to raise the temperature of 145 g of benzene from 23. 0°c to 68. 0°c. what is the specific heat of benzene?
If we takes 11. 2 kj of energy to raise the temperature of 145 g of benzene from 23. 0°c to 68. 0°c, then the specific heat of benzene is
1716.475 J/kg.°C.
Specific Heat capacity is given as
Q = cm(t₂-t₁) ................[tex]equation 1[/tex]
Where Q = quantity of heat, c = specific heat of benzene, m = mass of benzene, t₁ = initial temperature, t₂ = final temperature.
[tex]C[/tex] = [tex]\frac{Q}{m_{(t2-t1)} } ...........equation 2[/tex]
Given:
[tex]Q = 11.2 kJ = 11200 J \\\\m= 145\\\\g = 0.145 kg\\\\t_{2} = 68.0 °C\\\\t_{1} = 23.0 °C[/tex]
Substitute into equation 2.
[tex]C = \frac{11200}{[0.145(68-23)]}\\\\ C= \frac{11200}{6.525}\\\\ C= 1716.475 J/kg °C[/tex]
Hence the specific heat of benzene = [tex]1716.475 J/kg °C[/tex]
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Amines are ________. brønsted-lowry bases brønsted-lowry acids neutral in water solution unreactive
Answer:
A.) Brønsted-Lowry bases
Explanation:
Amines have a lone pair of electrons.
Brønsted-Lowry bases donate a lone pair of electrons in exchange for a hydrogen ion.
Therefore, if exposed to an acid, amines will give up electrons in order to bond with a hydrogen. This makes them Brønsted-Lowry bases.
As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.
As a gaseous element condenses, the atoms become closer together and they have more attraction for one another.
What is Condensation?The transformation of water vapour into liquid is known as condensation. The process is the opposite of evaporation, in which liquid water turns into a vapour. Either the air is chilled to its dew point or it gets too saturated with water vapour to retain any more water, causing condensation to occur.
Attraction - Gas Particles move continuously in a straight path in a gas. They are significantly further apart and move independently of one another because the kinetic energy of the molecule is larger than the attraction force between them. There are often almost no attractive forces between particles.
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What process is used to determine if an acid-alkali neutralization is complete? a. titration b. bronsted-lowry neutralization c. arrhenius neutralization d. filtration
Heliox is a mixture of helium and oxygen gas used to help patients with breathing difficulties. It is also used for scuba diving. The total pressure in a tank of heliox is 208 atm. If the mole fraction of o2 is 0. 220, what is the partial pressure of he in the tank?.
Partial pressure of helium gas in the tank is 162.24 atm.
Partial Pressure:
A partial pressure is the imaginary pressure that a gas would have if it were to occupy the complete volume of the initial mixture by itself at the same temperature. Each gas in a mixture of gases has a partial pressure.
Explanation:
Total pressure in Heloix (P) = 208 atm
The mole fraction of an individual gas component in an ideal gas mixture can be expressed in terms of the component's partial pressure or the moles of the component
Mole fraction of oxygen (X₀) = 0.220
The sum of the mole fractions of all the components present must equal 1.
Mole fraction of helium (Xₐ) = 1-(X₀) = 1- 0.220= 0.78
According to Dalton's law of partial pressure.
Partial pressure of an individual gas component in an ideal gas can be obtained using this expression:
Partial pressure of oxygen gas in Heloix: P*X₀ = 208 * 0.22 = 45.76 atm
Partial pressure of helium gas in Heloix: P*Xₐ = 208 * 0.78 = 162.24 atm
Partial pressure of helium gas is 162.24 atm.
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A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. The trains collide. After the collision the green train moves with a speed of 3 m/s. What is the final momentum of the blue train?
A. 110 kgm/s
B. 200 kgm/s
C. 20 kgm/s
D. 90 kgm/s
When magnesium reacts with hydrochloric acid, hydrogen gas is produced. The amount of gas produced is dependent upon the concentration of hydrochloric acid. Below is the data for a reaction with 1 molar hydrochloric acid. Determine which of the choices shows possible data for a reaction with 2 molar hydrochloric acid. time (mins) 0 123TLON8S 4 5 6 7 9 10 1 M acid hydrogen (cm³) ARANY 17 ATE 230VEL TEEN 0 14 24 31 36 41 44 46 47 48 48
Magnesium is a metal that reacts quickly. Magnesium chloride or hydrogen gas will be produced during the reaction with hydrochloric acid. Following will happen as a result: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g).
What happens in the magnesium-hydrochloric acid equation reaction?The equation for how magnesium interacts with hydrochloric acid reads: Mg(s)+2 HCl(aq) = MgCl2(aq)+H (g) This experiment can be used to demonstrate the production of hydrogen gas, a single displacement reaction, or even the typical reaction for metals with acid.
Why do hydrochloric acid and magnesium produce heat?Because energy was released into the environment when magnesium or oxygen particle collide to create new bonds, burning magnesium is indeed an exothermic reaction. Baking soda and citric acid react endothermically when the temperature drops. As the temperature rises, magnesium or hydrochloric acid undergo exothermic reactions.
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An electron initially in a 4p state decays to a lower energy state. which energy state is forbidden?
The state of energy that is forbidden is 2p orbital. The correct option is b).
What is the energy state of electrons?The energy state of an electron depends upon the presence of the electron on the orbitals. Lower the energy they will be in the lower orbital. When they get higher energy they move to the higher orbital.
By using the Selection Rules for Electron Transitions
1.) ?l = +/- 1 and
2.) ?m = 0, +/- 1
The conservation of angular momentum is required by these laws. A photon's inherent angular momentum is 1. As 4p is higher than 2p and the electron is lowering its energy. So, it will go down to 2p orbital.
Thus, the correct option is b). 2p orbital.
The question is incomplete. Your full question is given below:
a) 3d
b) 2p
c) 1s
d) 2s
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3h2so4 2b(oh)3 - b2(so4)3 6h2o what is the mole ratio between water and sulfuric acid?
Since there is an equal number of each element in the reactants and products of 3H2SO4 + 2B(OH)3 = B2(SO4)3 + 6H2O, the equation is balanced.
What is Sulfuric acid?Sulfuric acid (H2S04) is a corrosive substance, that destroys the skin, eyes, teeth, and lungs. Severe vulnerability can result in death. Workers may be harmed from disclosure to sulfuric acid. The level of exposure depends on The sulfuric acid bleaching can substitute the presently assumed oxygen and chlorine stages if the additives are allowed. This bleaching process was also practical for oxygen-bleached hardwood kraft pulp, but it was less compelling for softwood kraft pulp and oxygen-bleached softwood kraft pulp.Disbanding sulfuric acid in water is an exothermic procedure. When sulfuric acid is mixed with ice this exothermic procedure causes the temperature to rise at first, but as more of the ice dissolves, the temperature falls.To learn more about Sulfuric acid, refer to:
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Which of the given ions have the same ground state electron configuration: s2-, n3-, mg2 , and br-? a. s2-, n3-, mg2 , and br- b. s2-, n3-, and br- c. n3- and mg2 d. s2- and br- e. mg2 and br-
N3- and Mg2 ions have the same ground-state electron configuration.
Ground-state electron configuration:Understanding molecule bonding, characteristics, and structures begin with understanding ground state electron configurations. The ground state electron configuration provides insight into a wide range of atomic properties, including the electrons in an atom, distinct orbitals, and hybridization.
The ground state of an atom's electrons is the lowest energy state that is feasible for that atom since, throughout the cosmos, a system's natural state is to use the least amount of energy.
Aufbau-Principle: If you have a lot of luggage, you'll probably choose the room that is closest to the ground floor in a hotel without an elevator. The Aufbau principle demonstrates the identical behavior of electrons in the ground state. According to the Aufbau principle, electrons first occupy lower energy orbitals before moving on to higher energy orbitals.
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If you start with 3 moles of sodium and 3 moles of chlorine to produce sodium chloride, what is the limiting reagent?(you will need to balance the equation first.) na cl2 -> nacl
Sodium(Na) is the limiting reagent.
What is Limiting reagent?The reactant that is totally consumed during a reaction, or the limiting reagent, decides when the process comes to an end. The precise quantity of reactant required to react with another element may be estimated from the reaction stoichiometry.
How do you identify a limiting reagent?
The limiting reactant is the one that is consumed first and sets a limit on the quantity of product(s) that can be produced. Calculate how many moles of each reactant are present and contrast this ratio with the mole ratio of the reactants in the balanced chemical equation to get the limiting reactant.
Start by writing the balanced chemical equation that describes this reaction
[tex]2Na_{(s)} + Cl_{2 (g)} -- > 2NaCl_{(s)}[/tex]
Notice that the reaction consumes 2 moles of sodium metal for every 1 mole of chlorine gas that takes part in the reaction and produces 2 moles of sodium chloride.
now we can see that we have 3 moles of sodium and 3 moles of chlorine, according to question. so, we can say that sodium is the limiting reagent in the given situation.
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How many electrons are shared between one nitrogen atom and one carbon atom? two three six seven
the nitrogen and the carbon are sharing six electrons! A single bond is created when two atoms share two electrons. If they share four, their bond is doubled. These two are actually sharing a six, which is a triple bond.
How many electrons does the carbon atom share?By sharing four pairs of electrons through the formation of four covalent bonds, carbon fills its outer energy level and achieves stability.
How many electrons do nitrogen atoms share?Only the nitrogen atoms' valence shells are taken into account while thinking about the bonding in a nitrogen molecule. Eight electrons can fit in total in nitrogen's outer shell. Therefore, the nitrogen atoms share three electrons each in order to produce the most stable structure.
What holds carbon and nitrogen together?One of the most frequent bonds in organic chemistry and biochemistry is the covalent bond between carbon and nitrogen. With five valence electrons, nitrogen is trivalent in simple amines, with the two extra electrons forming a lone pair.
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Neptunium-237 was the first isotope of a transuranium element to be discovered. the decay constant is /s. what is the half-life in years? half-life = y
The half-life in years of Neptunium-237 which was the first isotope is 2.1 [tex]10^{6}[/tex] years.
Neptunium is most stable and Neptunium-237 is undergoes alpha decay, it means Neptunium-237 is decays by the emission of alpha particles . Seven alpha particles is emitted during decay of Neptunium-237. Neptunium-237 is radioactive actinide elements and first transuranium element.
The transuranium synthesis process involves creating a transuranium element through the transmutation process . The transmutation process is the process of creating heavy elements from light elements. Hence the process is the transmutation of light elements. There are two types: artificial and natural transmutation.
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50 examples word equation with balanced chemical equarion
