33× 10⁻⁷ A current is needed to plate 5g of Copper metal on a cathode.
Explain faraday's law of electrolysis.It states that during electrolysis, the amount of chemical reactions occurring at the electrodes under the influence of electrical energy is proportional to the amount of electricity conducted through the electrolyte.
n = zFQ
Where, n = moles of copper metal
n = 5/63.54
n = 0.078 moles
z = Number of electrons in the half-cell reaction
Cu²⁺ + 2e⁻ ⇔ Cu
z = 2
F = Faraday constant (96,485 A/mol)
Now, substitute the values in the equation mentioned above:
0.078 = 2 × 96,485 × Q
Q = 4.04 × 10⁻⁷ C
Since Q = I × t
Where, Q = charge
I = Current
t = Time (2 hours or 120 min.)
4.04 × 10⁻⁷ C = I × 120
I = 4.04 × 10⁻⁷/120
I = 33× 10⁻⁷ A
To know more about faraday's law of electrolysis, visit:
https://brainly.com/question/15292520
#SPJ1
polonium was discovered in uranium ores by marie and pierre curie. polonium-210 decays by emitting a single alpha particle. what nuclide is formed in this process?
A nuclide is formed in the process [tex]^{206}Pb[/tex].
What is polonium-210?Polonium is а rаdioаctive element thаt occurs nаturаlly in very low concentrаtions in the eаrth’s crust. Mаrie аnd Pierre Curie discovered polonium in 1898 while they were seeking the cаuse of the rаdioаctivity of pitchblende ore thаt contаined urаnium. Polonium in its pure form is а low-melting, fаirly volаtile metаl. Аll polonium isotopes аre rаdioаctive, but most аre very short-lived аnd decаy rаpidly. Only three polonium isotopes lаst for аny аppreciаble аmount of time. Those isotopes аre polonium-208, polonium-209, аnd polonium-210.
Polonium-210 is the predominаnt nаturаlly occurring isotope of polonium аnd the one most widely used. Polonium-210 hаs а hаlf-life of 138 dаys, аnd it decаys to stаble leаd-206 by emitting аn аlphа pаrticle (аn аlphа pаrticle hаs two protons аnd two neutrons).
For more information about polonium refer to the link:
https://brainly.com/question/555482
#SPJ4
the molar heat of fusion of water is 6.02 kj/mol. calculate the energy required to melt 46.8 g of water.
When the molar heat of fusion of water is 6.02 kJ/mol, it takes 15.4 kJ of energy to melt 46.8 g of water. The enthalpy of a substance changes due to heat of fusion , which releases energy.
To convert a substance from a solid to a liquid while maintaining pressure, a certain amount of the substance must be used.
A thermodynamic system's enthalpy, which is one of its properties, is calculated by adding the system's internal energy to the product of its pressure and volume. It is a state heat of fusion that is employed in numerous measurements in chemical, biological, and physical systems while the pressure is constant. Called enthalpy
46g/18g equals mols of water.
mole-1 equals 2.56 mole
1 mole melts at a temperature of 6.02KJ of heat.
Heat needed to melt 2.56 moles is equal to 6.02kJ*2.56 = 15.4kJ.
Learn more about heat of fusion here
https://brainly.com/question/14053504
#SPJ4
a 50.0 ml sample of 2.50 m phosphoric acid is titrated with a 1.20 m barium hydroxide solution. determine the volume of base used to reach the equivalence point in the titration.
The required volume of base is 156.25 mL
TitrationTitration of a strong acid with a strong base is a quantitative analysis to determine the molarity of an acid or base solution. Phosphoric acid has the chemical formula H₃3PO₄ with an acid valence of 3, while Barium hydroxide has the chemical formula Ba(OH)₂ with a base valence of 2. The volume of base needed can be calculated using the following formula:
(M H₃PO₄) (V H₃PO₄) (valence) = (M Ba(OH)₂ (V Ba(OH)₂) (valence)
We have,
M H₃3PO₄ = 2.50 m
V H₃3PO₄ = 50 ml
Valence = 3
M Ba(OH)₂ = 1.2 m
V Ba(OH)₂ = ?
Valence = 2
So,
(M H₃PO₄) (V H₃PO₄) (valence) = (M Ba(OH)₂ (V Ba(OH)₂) (valence)
(2.50) (50.0) (3) = (1.20) (V Ba(OH)₂) (2)
375 = 2.40 V Ba(OH)₂
V Ba(OH)₂ = 375/2.40
= 156.25 mL
So, The required volume of base is 156.25 mL
Learn more about titration here: https://brainly.com/question/186765#SPJ4
which formula(s) do you need to determine the ph that results from mixing 100 ml of 0.5 m hcl with 500 ml of 0.4 m nh3? think about all 8 steps and select all that apply.
HCl⟶H++Cl−
HI⟶H++I−
According to, the molarity of H+ is the same as HCl, because it is a strong acid and the mole ratio. So, I added the molarity of both acids: 0.15 M+0.055 M=0.205 M for H+ in solution.
pH= −log [H+]
pH= −log [0.205]
pH= 0.689
cHI(H+)=c(HI)cHCl(H+)=c(HCl)
Now you need to determine the amount of the protons in each solution with
n=c⋅V.
You have to add the amount of protons in each solution and determine the combined volume.
ntot(H+)=nHI(H+)+nHCl(H+)Vtot=V(HI)+V(HCl)
To calculate the pH of the resulting concentration, just take the negative logarithm.
pH=−logctot (H+) = −log[ntot (H+) Vtot]
pH is the negative logarithm of hydrogen ion concentration in a solution.
It determines the acidity and basicity of the solution.
Learn more about molarity at,
https://brainly.com/question/23501258
#SPJ4
the bromophenol blue endpoint is surpassed in the back titration of the excess hcl with the sodium hydroxide titrant. as a result of this technique error, will the reported amount of antacid in the sample be too high or too low? explain.
The reported amount of antacid in the sample will be too high.
What are antacids?
Antacids are simply assembled salts and salk like compound which help in neutralizing of acids.This Neutralization reaction by antacids leads to various products such as other salts, water and possibly carbondioxid which results in hydrolysis and insoluble compound precipitation. There is a noticeable decline in the neutralizing ability by antacids and neutralization rate of aluminum-containing antacids when they are neutralized ny antacids in the presence of organic acids, peptones, and polypeptides.
In above case, the reported amount of antacid will be high because it will report as more NaOH needed to neutralize a greater amount of HCl.
Hence, The reported amount of antacid will be too high.
To know more about the antacids, follow the below link
https://brainly.com/question/5328009
#SPJ4
The sample's antacid content will be overstated in the reported amount.
What are antacids?
Simple salts and salk-like compounds that are assembled to form antacids aid in neutralising acids. Antacids' neutralisation reaction produces a number of byproducts, including other salts, water, and possibly carbon dioxide, which causes hydrolysis and the precipitation of insoluble compounds. When aluminum-containing antacids are neutralised by antacids inside the presence of organic acids, peptones, and polypeptides, there is a discernible decline in their ability to neutralise and rate of neutralisation.
In the aforementioned situation, the reported amount of antacid would be high because more NaOH will be required to neutralise a larger amount of HCl.
Hence, The reported amount of antacid will be too high.
To know more about the antacids, follow the below link
brainly.com/question/5328009
#SPJ4
what precautions should a remote pic do to prevent possible inflight emergencies when using lithium-based batteries?
When using lithium-based batteries In order to enable optimal recharging, store the batteries in a fridge.
What are the dangers of lithium batteries?As long as there are no flaws as well as the cells are not damaged, lithium batteries are type of ethical and unlikely to malfunction. Lithium batteries may pose a fire and/or detonation risk if they are damaged or unable to function safely.
Lithium or ion batteries: which performs better?For reliable and high-power use, lithium-ion and battery packs are both appropriate. But compared to battery packs, battery packs are more effective and common. This is so that they may be used in large quantities due to their higher power levels.
To know more about Lithium battery visit:
https://brainly.com/question/5131449
#SPJ4
What is another name for the activation energy barrier in a reaction?
A.
transition state
B.
changing state
C.
top of reaction
D.
needed energy
Please help me.
solid aluminum nitrate is added to distilled water to produce a solution in which the concentration of the nitrate ion, [no3-], is 0.60 m. what is the concentration of aluminum ion in this solution? (note: square brackets around a chemical formula indicates the molarity of that particular species)
The solid Aluminium Nitrate is added to distilled water to produce the solution, the concentration of Aluminium ions in the solution is 0.20 M
The Solid Aluminium Nitrate Al[NO₃]₃ consists of a ratio of 1 Aluminium ion consisting of 3 Nitrate ions per formula unit.
Thus, the concentration of [NO₃]³⁻ is given as 0.60M
1 [Al]³⁺ → 3[NO₃]
∴ 1 [Al]³⁺ → 1/3 × 0.60
1 [Al]³⁺ → 0.20 M
Hence, the concentration of aluminum ions in the solution is 0.20 M.
The Aluminium Nitrate appears to be a white, crystalline solid. Though it is a non-combustible compound but can accelerate the burning of combustible materials. In large quantities, it could lead to explosions.
Learn more about Aluminium Nitrate here https://brainly.com/question/79967
#SPJ4
what is the concentration of ammonia ( n h 3 ) in solution if 24.60 ml of 0.1080 m hcl is needed to titrate a 250 ml sample of the ammonia solution to the end point?
According to the given statement A solution's ammonia concentration will be 0.0106 M.
What is concentration in chemistry?The amount of solute contained in a specific solution volume is the substance's concentrations. The molarity of solute for 1 L of solution, or molarity, is used to express quantities.
Briefing:NH₄OH(aq) + HCl (aq)⇒ NH4Cl(aq) + H2O (l)
According to the neutralization law,
n[tex]_1[/tex]M[tex]_1[/tex]V[tex]_1[/tex] = n[tex]_2[/tex]M[tex]_2[/tex]V[tex]_2[/tex]
where,
M[tex]_1[/tex] = molarity of HCl solution = 0.1080 M
V[tex]_1[/tex] = volume of HCl solution = 24.60 ml
M[tex]_2[/tex] = molarity of NH₄OHsolution = ?
V[tex]_2[/tex] = volume of NH₄OH solution = 250.0 ml
n[tex]_1[/tex] = valency of HCl = 1
n[tex]_2[/tex] = valency of NH₄OH= 1
1 * 0.1080 M * 24.60 = 1 * M2 * 250.0
M2 = 0.0106
As a result, a solution's ammonia concentration will be 0.0106 M.
To know more about Concentration visit:
https://brainly.com/question/10725862
#SPJ4
What mass of iodine is produced when 14.2 grams of chlorine reacts with potassium iodine?
Answer:
50.8g of iodine is produced.
Explanation:
You have to do stoichiometry. To get grams of iodine produced.
Start with grams of chlorine that you're givenConvert these to moles (using molar mass)Convert moles of Cl2 into moles of I2Convert moles of I2 into grams of I2 (using molar mass)(Remember to multiply across the top and divide by the bottom)
[tex]\frac{14.2g Cl2}{1} * \frac{1 mol Cl2}{70.9g} * \frac{1 mol I2}{1mol I2} * \frac{253.8g}{1 mol I2}[/tex]
Is a Covalent bond stronger than an Ionic Bond?
Answer:
yes
Explanation:
because of the close sharing of pairs of electrons
Because of the close sharing of pairs of electrons (one electron from each of two atoms), covalent bonds are stronger than ionic bonds.
Explanation:Ionic bonds are formed by the complete transfer of electrons and covalent bonds are formed by sharing of electrons. The force between ionic bonds is electrostatic force, while that in covalent bonds is Van der Waals force. Generally, ionic bonds are much stronger than covalent bonds. In ionic bonds, there is a complete transfer of electrons between elements to form a stable compound. While in a covalent bond, there is only sharing of electrons between two elements to form a stable compound. The force that keeps the ions together is the electrostatic force and the force that keeps the elements together bonded with covalent bonds is the Van Der Waals force. As there is a complete transfer of electrons in ionic bonds, cations and anions are formed. Thus there exists a huge electrostatic force of attraction between these ions.
what salt water body does the water you use in your home travel to?
Other natural therapies, such as salt water, can help soothe a sore throat. Gargling with salt water works well to destroy bacteria, reduce discomfort, and loosen mucus.
What does "remedying a situation" mean?When you fix something that is broken or harmful, you enhance it. To correct the situation, a lot has been done inside. Synonyms include rectify, redress, and reform. More remedies' opposites.
Describe the four treatments.The four primary categories of judicial remedies are (1) damages, (2) restitution, (3) coercive remedies, and (4) declaratory remedies. These categories are organized according to their intended use. Damages are typically used as a remedy to make up for any harm that has been done to the affected party.
To know more about remedies visit:
https://brainly.com/question/15126016
#SPJ13
what is the abbreviated nomenclature for a 14-carbon omega-3 fatty acid that contains no other double bonds?
14:1 (delta 11) denotes the presence of a single double bond at carbon 11, starting at the carboxyl terminus, in the fatty acid.
How is omega-3 created?
The chloroplasts of plants, including grass, leaves, green algae, and other plants, produce omega-3s. Fish, animals, and humans are unable to make omega-3s on their own. Instead, they obtain them from this vegetation.
Explanation:
With the exception of steroids, fatty acids are carboxylic acids that provide the structural foundation of fats, oils, and all other types of lipids. More than 70 have been found in the natural world. They are typically unbranched, have an even number of carbon atoms, and can be divided into groups based on the existence and quantity of carbon-to-carbon double bonds.
14:1 (delta 11) denotes the presence of a single double bond at carbon 11, starting at the carboxyl terminus, in the fatty acid.
To learn more about omega-3 from the given link.
https://brainly.com/question/1373421
#SPJ4
The ratio :14 (delta 11) inside the fatty acid indicates a lone double bond at carbon 11, starting at the 3'-end.
How is omega-3 created?In their chloroplasts, plants such as grasses, leaves, cyanobacteria, and other flora all produce omega-3 fatty acids. Fish, animals, or humans cannot create omega-3s on their own. Instead, they get them from this facility.
Explanation:Fatty acids, which are naturally acidic, are the components of oils, oils, and other lipids as well as the legos of steroids. The natural world has more than 70 that have been discovered. They can be classified into categories based on the number and amount of coal single bonds, and are often spindle-shaped.
To know more about omega-3 visit:
https://brainly.com/question/1191084
#SPJ4
How many moles
moles are in 1850 grams of sucrose?
Answer:
grams Sucrose = 0.0029214440066693 mole using the molecular weight calculator and the molar mass of C12H22O11.
Answer: 5.41 moles
N=m/M
= 1850/12*12+22*1+16*11
N= 5.41 moles
100. grams of ammonia (nh3) is dissolved in a 8.3 l solution. what is the molarity of the resulting solution? report your answer with the correct number of significant figures.
The molarity of a resulting solution is 0.707 mol/L
The molarity of a solution is defined by the amount of solute in moles divided by the volumes of solution in litres.
1 grams of ammonia is equals to 0.05872 mol
100 grams of ammonia is equals to 5.872 mol
Molarity of a resulting solution would be = 100 gm of NH3 / 8.3 L of a solution.
That is 5.872 moles of NH3 / 8.3 of a solution.
Molarity of a resulting solution would be 0.707 mol/L of a solution.
Learn more about molarity here https://brainly.in/question/1159016
#SPJ4
if x x represents the molar solubility of b a 3 ( p o 4 ) 2 bax3(pox4)x2 , what is the correct equation for the k s p ksp ?
If x represent the molar solubility of Ba₃(PO₄)₂ Bax₃(POx₄)x₂ the correct equation for Ksp is (3x)³(2x)².
The equation is given as :
Ba₃(PO₄)₂ ⇄ 3Ba²⁺ + 2PO₄³⁻
if x represent molar solubility then , we get :
Ba₃(PO₄)₂ ⇄ 3Ba²⁺ + 2PO₄³⁻
3x 2x
therefore , the solubility product constant is given as :
Ksp = (3x)³(2x)²
The solubility product constant is the equilibrium constant which used for the dissolving of solid substances into the aqueous solution. The solubility product constant is denoted as Ksp. The value of solubility constant depends on temperature.
Thus, If x represent the molar solubility of Ba₃(PO₄)₂ Bax₃(POx₄)x₂ the correct equation for Ksp is (3x)³(2x)².
To learn more about solubility product here
https://brainly.com/question/28170449
#SPJ4
according to the ideal gas law, a 0.9686 mol sample of oxygen gas in a 1.309 l container at 270.9 k should exert a pressure of 16.45 atm. what is the percent difference between the pressure calculated using the van der waals' equation and the ideal pressure?
The percent difference between the pressure calculated using the van der waals' equation and the ideal pressure is 5.89 %.
This can be calculated using van der waals' equation, followed by calculating pressure difference by: [P(ideal)-P(Van der waal's equation)/P(ideal)]*100
P(ideal) is given: 16.45
P(van der waals'): [tex](P+n2aV2)(V−nb)=nRT[/tex]
T= 270.9K
V=1.301 L
a for oxygen = 1.36 (L2 atm mol-2)
b for oxygen = 0.0319 (L mol-1)
n= 0.9686 mol
Using equation P(van der waals's) = 15.48 bar
and difference is 5.81%
To know more about van der Waals' equation, click here,
brainly.com/question/29280050
#SPJ4
Ignoring sign which transition is associated with the greatest energy change?
N=1 to n=3
N=3 to n=5
N=2 to n=1
N=3 to n=2
According to the given statement The transition from n=1 to n=3 results in the largest energy change.
How do you calculate energy change?Energy change Equals energy in Minus energy out. To calculate the energy transfer for a reaction, add the bond energy for all the atoms in the reactants (this is the "energy in") and the bond values for all the bonds with in products (this is the "energy out").
What causes energy to change?Energy is capable of changing its forms. For instance, electrical energy transforms into thermal and light heat when a lightbulb is turned on. A automobile transforms the gasoline's molecular bonds' stored energy into a variety of other forms. Chemical energy is converted to light in the engine through a chemical reaction.
To know more about Energy visit:
https://brainly.com/question/14029627
#SPJ4
Write a paragraph explaining how the elements and water would be important to searching for life on another planet. Be sure to include a claim evidence, and reasoning
Checklist
What are the elements that support life
How do these elements support life
why is water so important to living things
Describe each of the properties of water listed
relate these properties to waters importancefor living things
ANSWER ALL WITH DETAILS AND I WILL MARK BRANLIEST
40 POINTS
The elements carbon, nitrogen, hydrogen, sulfur, phosphorus, and oxygen as well as water are important in searching for life as these elements are the main components of organic water whereas water is the universal solvent dissolving these organic molecules.
What are the elements needed for life to exist?The elements needed for life to exist are the elements found in organic compounds.
The elements that are found in organic compounds are:
carbonnitrogenoxygenhydrogenphosphorussulfurThese elements are found in the main macromolecules of life which are proteins, lipids, carbohydrates, and nucleic acids.
Another substance that is the most important substance that sustains life is water.
Water is needed for life because it is the most important solvent in which the living components of the cells are dissolved.
Learn more about elements of life at: https://brainly.com/question/28604466
#SPJ!
if 100. ml of the solution in part 1 is concentrated by evaporation to give a final volume of 1.00 ml, what is the change in ph?
if 100. ml of the solution in part 1 is concentrated by evaporation to give a final volume of 1.00 ml, the change in pH decreases by 2 pH increases by 2.
what is evaporation?
Your body feels a little bit colder when you put perfume on it. Water and acetone operate similarly. This is a result of evaporation, which is the process by which a substance transforms from a liquid to a gas. The only distinction is the speed at which the cooling is experienced. Acetone causes the area of your body closest to the liquid to cool off the fastest. This occurs as a result of acetone evaporating more quickly than water or scent.The transfer of the liquid particles into the gaseous phase is known as evaporation, which often occurs on the surface of liquids.However, This procedure is therefore stated to include a shift in the liquids' condition of matter.
To learn more about Evaporation do follow
https://brainly.com/question/9339710
#SPJ4
The table below shows the boiling points of
some halogens.
Explain the trend in the boiling points of the
halogens.
Answer:
Boiling point decrease from left to right of the periodic table
what molecules does mgso4 remove from the viodiesel, what chemical interactions are occuring that allow this to work
The MgSO₄ (magnesium sulfate) remove water molecules entrapped in biodiesel. Ion dipole are the interactions that allow this to work.
Diesel fuel can be replaced by domestically produced, clean-burning biodiesel. The use of biodiesel as a vehicle fuel increases energy security, benefits the environment and the air we breathe, and enhances safety. Animal fats, used cooking oils, yellow grease, and vegetable oils can all be used to make biodiesel. The process of transesterification, which turns fats and oils into biodiesel and glycerin, produces the fuel. The electrostatic attraction between an ion and a dipole-containing neutral molecule produces an attractive force known as the ion-dipole force. typically located in solutions. important in particular for ionic compound solutions in polar liquids.
Learn more about biodiesel here:
https://brainly.com/question/27438595
#SPJ4
For many purposes we can treat propane C3H8 as an ideal gas at temperatures above its boiling point of −42.°C Suppose the temperature of a sample of propane gas is raised from -28.0°C to 9.0°C, and at the same time the pressure is increased by 5.0%
The percent change in volume is 21 %.
given that :
Temperature T1 = 245 K
temperature T2= 282 K
Pressure P1 = P
pressure P2 = P - 0.05 = 0.95 P
V1 = V
V2 = ?
using the ideal gas equation , we get :
P1 V1 / T1 = P2 T2 / V2
V2 = ( P1 V1 T2 ) ( P2 T1 )
V2 = ( P × V × 282 ) /( 0.95P × 245)
V2 = 1.21 V
change in volume = V2 - V1 = 1.21 V - V
= 0.21
% change in volume = 0.21 × 100 %
= 21 %
Thus, The percent change in volume is 21 %.
To learn more about ideal gas equation here
https://brainly.com/question/28837405
#SPJ1
Fe(s) + O2(g) →Fe₂O3(s)
Answer:
4Fe(s) + 3O₂(g) = 2Fe₂O₃(s)
4. How is a straight average different from a weighted average?
When calculating the straight average or arithmetic average, all numbers are treated equally and are weighted equally. Weighted averaging, however, assigns a weight that predetermines the relative importance of each data point. Weighted averages are most often calculated to even out the frequency of values in a data set.
What are straight average and weighted average ?
The straight average is calculated by adding the earned totals and dividing by the possible totals using points or percentages for the current grading period assignment. The weighted average assigns an importance (or weight) to each number. Weighted averages are more useful than regular averages because they provide more nuance. Less important data are given less weight, so more important data have more impact on results
To know about straight average and weighted average from the link
https://brainly.com/question/18554478
#SPJ13
which statement is correct for an endothermic reaction? a. bonds in the products are stronger than the bonds in the reactants. b. bonds in the reactants are stronger than the bonds in the products. c. the enthalpy of the products is less than that of the reactants. d. the reaction is spontaneous
It is appropriate for just an endothermic reaction when the reactant's bonds are stronger than the product's bonds.
The correct answer is B
What is an endothermic reaction?Chemical reactions classified as endothermic occur when the reactants absorb heat energy from their surroundings to produce products. These occurrences have a cooling effect because they make their immediate surroundings colder.
What action is endothermic?If heat is absorbed by system from of the environment, the reaction and physical change is endothermic. As a result of the system absorbing heat from its surroundings during an endothermic process, the environment's temperature drops.
To know more about endothermic reactions visit:
https://brainly.com/question/23184814
#SPJ13
f 150 mL of a 2.5M KBr solution is diluted to 500 mL, what is the new concentration of KBr?
Taking into account the definition of dilution, if 150 mL of a 2.5M KBr solution is diluted to 500 mL, the new concentration of KBr is 0.75 M.
DilutionA stock solution is a highly concentrated solution. Stock solutions are very useful because they allow a portion to be diluted to obtain the desired concentration.
Then, dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
Ci: initial concentrationVi: initial volumeCf: final concentrationVf: final volumeNew concentration of KBrIn this case, you know:
Ci= 2.50 MVi= 150 mLCf= ?Vf= 500 mLReplacing in the definition of dilution:
2.50 M× 150 mL= Cf× 500 mL
Solving:
(2.50 M× 150 mL)÷ 500 mL= Cf
0.75 M= Cf
In summary, the new concentration of KBr is 0.75 M.
Learn more about dilution:
brainly.com/question/6692004
brainly.com/question/16343005
brainly.com/question/24709069
#SPJ1
Draw a valid lewis structure for methane, ch4. What is the formal charge on the carbon atom?.
Methane is the common name for methane. In the organic molecule, it is the simplest hydrocarbon and a hydride of carbon. Tetrahedral in shape and with an exact bond angle of 109.50 in Lewis structure.
The methane molecule has the Lewis structure, Dots are used to indicate the positions of electrons surrounding the atoms in a molecule, while lines or pairs of dots are used to represent covalent connections between atoms in a Lewis structure. The goal of creating a Lewis dot structure is to locate the molecules' lone electron pairs in order to establish how chemical bonds are formed. Natural gas's primary component and the simplest alkane is methane, a chemical molecule with the molecular formula methane (one carbon atom bound to four hydrogen atoms).
Learn more about methane here
https://brainly.com/question/2127750
#SPJ4
Question 1: (answer in place of item 13)
2C2H3AgO2 + K2CrO4 = C2H3KO2 + __________
Silver Acetate combines with Potassium Chromate to produce Potassium Acetate and a final product. Knowing that the equation must balance - what is that final product?
Question 2:(answer in place of item 14)
When chlorine gas is bubbled through a solution of sodium bromide, a reaction occurs which produces salt (sodium chloride) and bromine gas.
Determine what is being oxidized and what is being reduced.
Identify the oxidizing and reducing agents.
Cl2(g) + 2NaBr(aq) → 2NaCl(aq) + Br2(l)
Question 3:(answer in place of item 15)
The battery below is allowed to operate for 8 hours. At the end of this time the zinc strip is visibly corroded and much smaller while the copper strip is shiny and thicker.
Which way (left-right or right-left) are electrons flowing.
Is the zinc being reduced or oxidized? How do you know?
1) The reaction is as :
2C₂H₃AgO₂ + K₂CrO₄ ------> 2C₂H₃KO₂ + Ag₂CrO₄
2) chlorine is reduced. bromine is oxidizes.
1) In the question is given that : silver acetate combines with potassium chromate to produce potassium acetate and the final product is silver chromate. the reaction is given as :
2C₂H₃AgO₂ + K₂CrO₄ ------> 2C₂H₃KO₂ + Ag₂CrO₄
2) When chlorine gas is bubbled through a solution of sodium bromide, a reaction occurs which produces salt (sodium chloride) and bromine gas.
Cl₂ + 2NaBr -----> 2NaCl + Br₂
The chlorine oxidation state changes to 0 to -1 . so chlorine is reduced.
The oxidation state of brome is changes from -1 to . so bromine is oxidizes.
Thus, 1) The reaction is as :
2C₂H₃AgO₂ + K₂CrO₄ ------> 2C₂H₃KO₂ + Ag₂CrO₄
2) chlorine is reduced. bromine is oxidizes.
To learn more about oxidized and reduced here
https://brainly.com/question/17046342
#SPJ1
Why didn't some scientists agree with Newlands 'Law of Octaves'
The reason that some scientists did not agree with Newlands 'Law of Octaves' was Because so many new elements were still being found and could not be included in the table, many scientists did not agree with Newland's law of octaves.
Why did other scientists reject Newlands' claims?He placed sulfur (S) and oxygen (O), two non-metals, in the same group as iron (Fe), a metal, as an illustration. His table was rejected by other scientists as a result.
Additionally, not all of the elements in his octaves shared the same characteristics. For instance, in the seventh octave, O (Oxygen, a non-metal), and Fe (Iron a metal).
Learn more about 'Law of Octaves from
https://brainly.com/question/21672702
#SPJ1