The number of grams of iron that can be recovered from 25.0g of Fe2O3 can be determined using stoichiometry, which involves the use of balanced chemical equations, molar ratios, and the conservation of mass and atoms. In this case, we want to know the mass of iron that can be obtained from a given mass of Fe2O3, which is a reactant in the chemical equation of the reduction reaction.
Based on the chemical equation of the reduction of Fe2O3 with carbon, the balanced chemical equation is as follows:2 Fe2O3 + 3 C → 4 Fe + 3 CO2The stoichiometric coefficients indicate the number of moles of each substance in the reaction. Therefore, we need to convert the given mass of Fe2O3 into moles and then use the molar ratios to determine the number of moles of iron and its corresponding mass.
Here are the steps involved:1. Calculate the molar mass of Fe2O3:Molar mass of Fe = 55.845 g/molMolar mass of O = 15.999 g/mol Molar mass of Fe2O3 = 2(55.845 g/mol) + 3(15.999 g/mol)Molar mass of Fe2O3 = 159.69 g/mol2. Convert the given mass of Fe2O3 to moles: Moles of Fe2O3 = Mass of Fe2O3 / Molar mass of Fe2O3Moles of Fe2O3 = 25.0 g / 159.69 g/mol.
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which ionic species when added to pure water woudl result in a change of ph
Adding an ionic species to pure water can result in a change in pH if the species reacts with water to produce either acidic or basic products. Specifically, ionic species that can donate or accept protons (H⁺) can alter the concentration of H⁺ ions in the water and consequently affect its pH.
For example, if an ionic species donates protons to water, it increases the concentration of H⁺ ions, making the solution more acidic and lowering the pH. Conversely, if an ionic species accepts protons from water, it reduces the concentration of H⁺ ions, resulting in a more basic solution and raising the pH.
The extent of pH change depends on the concentration and strength of the ionic species. Strong acids and bases, such as hydrochloric acid (HCl) and sodium hydroxide (NaOH), can cause significant changes in pH when added to pure water due to their high reactivity and ionization. Weaker acids and bases may have a smaller impact on pH, depending on their concentration and dissociation constant.
In summary, the addition of an ionic species to pure water can affect the pH if the species can donate or accept protons, altering the concentration of H⁺ ions in the solution. The strength and concentration of the species determine the magnitude of the pH change.
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A mixture of gases contains 12. 0 grams of n2 and 15. 0 grams of ar, under a total pressure of 1. 32 atm. What is the partial pressure of n2?.
A mixture of gases contains 12. 0 grams of n2 and 15. 0 grams of ar, under a total pressure of 1. 32 atm. What is the partial pressure of n2?.
The partial pressure of n2 in the mixture of above gases is 0.7atm.
What is partial pressure?
Each gas in a mixture of gases has a partial pressure, which is the pressure that would exist if that gas alone had filled the complete volume of the original mixture at the same temperature.
N=12.0, Ar=15.0
Total pressure=1.32
Partial pressure of n2=?
WN2=12.0
WAr =15.0
nN2=12/28 =0.42
nAr=15/40 =0.37
Xn2=0.42/0.42+0.37 =0.53
Pn=Xn2×Ptotal
=0.53×1.32=0.69atm that ie nearly equal to 0.7atm
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circle the correct words to complete the sentences
1. Precipitation falls in these two forms: solid/liquid/gas
2. Evaporation changes gas/liquid water to ice (solid)/water vaoor (gas)
Answer:
1. solid and liquid
2.Evaporation changes liquid water to water vapour.
Answer: i don't know i just want points sorry can you blame me you would do the same too i know you
Explanation:
yay i got 5 points
What does it mean if a light wave is TRANSMITTED?*
1 point
Transmission means light waves bending when it enters a different medium
Transmission means light waves bouncing off something
Transmission means light waves move energy from one place to another
Transmission means light waves are taken in or dispersed within a medium
Answer:
Transmission means light waves bending when it enters a different medium
Explanation:
CH4 (g) + H2O(g) → CO(g) + 3H2 (g) What is the volume of steam, H2O(g), needed to completely react with 53.50L of methane gas at a constant pressure and temperature? What is the volume of carbon monoxide, CO, produced? What is the volume of Hydrogen gas, H2, produced? What is the total volume of gas produced?
To solve this problem, we need to use stoichiometry to relate the volume of methane to the volumes of steam, carbon monoxide, and hydrogen produced.
The balanced chemical equation is:
CH4 (g) + H2O(g) → CO(g) + 3H2 (g)
The stoichiometric ratio of steam to methane is 1:1, so the volume of steam needed is also 53.50 L.
To determine the volumes of carbon monoxide and hydrogen gas produced, we need to use the stoichiometric coefficients in the balanced equation. For every 1 mole of methane consumed, 1 mole of steam is consumed, 1 mole of carbon monoxide is produced, and 3 moles of hydrogen gas are produced.
First, we need to convert the volume of methane gas to moles using the ideal gas law:
PV = nRT
n = PV/RT
n = (1 atm) x (53.50 L) / [(0.08206 L·atm/mol·K) x (298 K)]
n = 2.189 mol
Therefore, 2.189 moles of methane react with 2.189 moles of steam to produce 2.189 moles of carbon monoxide and 6.567 moles of hydrogen gas.
To convert the moles of each gas to volume, we use the ideal gas law again:
V = nRT/P
For carbon monoxide:
n = 2.189 mol
R = 0.08206 L·atm/mol·K
T = 298 K
P = 1 atm
V = (2.189 mol) x (0.08206 L·atm/mol·K) x (298 K) / (1 atm)
V = 53.68 L
For hydrogen gas:
n = 6.567 mol
R = 0.08206 L·atm/mol·K
T = 298 K
P = 1 atm
V = (6.567 mol) x (0.08206 L·atm/mol·K) x (298 K) / (1 atm)
V = 160.76 L
The total volume of gas produced is the sum of the volumes of carbon monoxide and hydrogen gas:
53.68 L + 160.76 L = 214.44 L
Therefore, the volume of steam needed is 53.50 L, the volume of carbon monoxide produced is 53.68 L, the volume of hydrogen gas produced is 160.76 L, and the total volume of gas produced is 214.44 L.
Answer: 185.5 L.
Explanation: To solve this question, we need to use the stoichiometry of the chemical reaction to determine the amounts of each gas produced. The balanced chemical equation is:
CH4 (g) + H2O(g) → CO(g) + 3H2(g)
According to the stoichiometry of the reaction, 1 mole of methane reacts with 1 mole of water to produce 1 mole of carbon monoxide and 3 moles of hydrogen. Therefore, we can use the ideal gas law to calculate the volumes of each gas produced.
Given that the initial volume of methane gas is 53.50 L, we can first calculate the number of moles of methane present using the ideal gas law:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature. Since the pressure and temperature are constant, we can write:
n = PV/RT
where R = 0.08206 L atm/K mol is the gas constant.
n(CH4) = (1 atm)(53.50 L)/(0.08206 L atm/K mol)(298 K) = 2.23 mol
This means that 2.23 moles of methane react with 2.23 moles of water to produce 2.23 moles of carbon monoxide and 6.69 moles of hydrogen.
To determine the volume of water needed to react with all the methane, we can use the stoichiometry of the reaction again:
1 mol CH4 reacts with 1 mol H2O
Therefore, the number of moles of water required is also 2.23 mol. We can calculate the volume of water using the ideal gas law:
n(H2O) = PV/RT
V(H2O) = n(H2O)RT/P = (2.23 mol)(0.08206 L atm/K mol)(298 K)/(1 atm) = 46.4 L
Therefore, the volume of steam required to react with all the methane is 46.4 L.
Next, we can use the stoichiometry of the reaction to calculate the volumes of carbon monoxide and hydrogen produced:
1 mol CH4 produces 1 mol CO
1 mol CH4 produces 3 mol H2
Therefore, the number of moles of carbon monoxide and hydrogen produced are also 2.23 mol and 6.69 mol, respectively. We can calculate their volumes using the ideal gas law:
V(CO) = n(CO)RT/P = (2.23 mol)(0.08206 L atm/K mol)(298 K)/(1 atm) = 46.4 L
V(H2) = n(H2)RT/P = (6.69 mol)(0.08206 L atm/K mol)(298 K)/(1 atm) = 139.1 L
Therefore, the volume of carbon monoxide produced is 46.4 L and the volume of hydrogen produced is 139.1 L.
The total volume of gas produced is the sum of the volumes of carbon monoxide and hydrogen:
V(total) = V(CO) + V(H2) = 46.4 L + 139.1 L = 185.5 L
Therefore, the total volume of gas produced is 185.5 L.
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please pass the question to an expert
the answers given first were irrelevantto my question
(a) What distinguishes the 3 primary classes of materials from each other? (2 marks) (b) From the point of view of atomic structure, explain the occurrence of transition elements in the Periodic Table
Solution of a:
The three primary classes of materials are metals, ceramics, and polymers. They can be distinguished based on their chemical composition, atomic structure, and physical properties.
Metals: Metals are typically solid, opaque, and good conductors of heat and electricity. They have a crystalline atomic structure with closely packed atoms arranged in a regular pattern. They exhibit metallic bonding, where valence electrons are delocalized and form a "sea" of electrons, resulting in malleability, ductility, and high tensile strength.
Ceramics: Ceramics are typically hard, brittle, and insulators of heat and electricity. They have an atomic structure with a combination of metallic and non-metallic elements. They are composed of non-metallic compounds, such as oxides, nitrides, and carbides. Ceramics have strong ionic or covalent bonds, resulting in high melting points and chemical stability.
Polymers: Polymers are typically lightweight, flexible, and insulators of heat and electricity. They have large molecular structures composed of repeating units called monomers. Polymers have covalent bonds between atoms in the monomer units and weak intermolecular forces between polymer chains. This gives them low melting points, low density, and the ability to be molded into different shapes.
Solution of b:
Transition elements occur in the Periodic Table due to their unique atomic structure.
Transition elements, also known as transition metals, are located in the central block of the periodic table between the s-block and p-block elements. They are characterized by partially filled d orbitals in their atomic structure. The d orbitals can hold a maximum of 10 electrons.
The occurrence of transition elements in the periodic table is a result of the filling of electron shells according to the Aufbau principle and the Pauli exclusion principle. As electrons are added to an atom, they occupy the lowest available energy levels first. In the case of transition elements, after the filling of the s orbitals in the previous period, the d orbitals start to fill. The filling of the d orbitals leads to the transition from one period to another.
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Give the electronic configuration of an atom of sulfur.
Answer:
1s² 2s² 2p⁶ 3s² 3p⁴
Explanation:
Looking at the periodic table, we see that sulfur (S) has an atomic number of 16, this means its electronic configuration would be:
1s² 2s² 2p⁶ 3s² 3p⁴We know the electronic configuration written above is correct because the sum of all the superscript numbers is 16 (2+2+6+3+4=16).
True or false; A solution always contains only one solvent.
A solution is defined as a mixture of two or more substances, usually, a solute and a solvent, and the difference between these two are in quantity, solute represents the smallest amount and solvent will represent the highest amount, and while you can have more than one solute, you can only have one solvent for a solution. Therefore the statement is true
Data Trial 1 Trial 2
Mass of empty crucible with lid 26.689 26.689
Length of ribbon cut 1 inch 1 inch
Mass of Mg metal, crucible, and lid 26.947 26.947
Mass of MgO, crucible, and lid 27.115 27.115
3. Magnesium is the limiting reactant in this experiment. Calculate the theoretical yield of MgO for each trial using stoichiometry.
• Trial 1:
• Trial 2:
4. Determine the percent yield of MgO for your experiment for each trial.
• Trial 1:
• Trial 2:
5. Determine the average percent yield of MgO for the two trials.
The theoretical yield of MgO is 0.84 g. The limiting reactant or limiting reagent is a reactant in a chemical reaction.
What is limiting reactant?The limiting reactant or limiting reagent is a reactant in a chemical reaction that determines the amount of product that is formed. Identification of the limiting reactant makes it possible to calculate the theoretical yield of a reaction.
The reason there is a limiting reactant is that elements and compounds react according to the mole ratio between them in a balanced chemical equation.
Mg is limiting reagent so amount of MgO depends on the amount of Mg.
Mg + O₂ \(\rightarrow\) 2 MgO
1 mol 2 mol
Molar mass of Mg = 24 g/mol
Molar mass of MgO = 24 + 16 = 40 g/mol
24 g of Mg gives 80 g of MgO
mass of Mg for trial 1
Mass of Mg = mass of Mg metal, crucible and lid - mass of empty crucible and lid
Mass of Mg = 26.931 g - 26.679 g
Mass of Mg = 0.252 g
24 g of Mg ≅ 80 g of MgO
0.252 g of Mg ≅ X g of MgO
X g of MgO = 0.84 g
theoretical yield of MgO=0.84 g
Therefore, the theoretical yield of MgO is 0.84 g.
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18 grams
4 kilograms
8 kilograms
Answer:
1 18 grams
2 500g
4 960 grams
5 7 kilograms
A 100. 0 mL sample of natural water was titrated with NaOH. The titration required 13. 57 mL of 0. 1123 M NaOH solution to reach a light pink phenolphthalein end point. Calculate the number of millimoles of NaOH required for the titration
A 100.0 mL sample of natural water was titrated with 13.57 mL of 0.1123 M Na OH solution to reach a light pink are the phenolphthalein end point. The number of millimoles of Na OH required for the titration is 1.525011 millimoles. Titration is a technique used in chemistry
to identify the quantity of a substance by adding a reactant until the chemical reaction is completed. In titration, a solution of known concentration (the titrant) reacts with a solution of unknown concentration (the analyte) to determine its concentration. Titration of natural water with Na OH In this case, we are titrating natural water with Na OH to find the concentration of the unknown solution. The balanced chemical reaction for the titration of natural water with Na OH is:H2O + Na OH → Na+ + OH- + H2O
The volume of NaOH required to reach the end-point of the titration is 13.57 mL. The molarity of Na OH used for the titration is 0.1123 M. We can use the following formula to calculate the number of millimoles of Na OH required for the titration Millimoles of Na OH = (Volume of Na OH × Molarity of NaOH) / 1000Substitute the given values in the above equation and solve for the millimoles of Na OH required for the titration. Millimoles of Na OH = (13.57 mL × 0.1123 M) / 1000= 0.001525011 millimoles Therefore, the number of millimoles of NaOH required for the titration is 1.525011 millimoles.
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when an acid such as hcl reacts with a metal, such as zinc (shown here) the gas produced is
When an acid such as hydrochloric acid (HCl) reacts with a metal like zinc (Zn), the gas produced is hydrogen gas (H₂).
When hydrochloric acid (HCl) reacts with zinc (Zn), something interesting happens. The acid gives away its hydrogen atoms (H⁺) to the zinc. At the same time, the zinc gives away some of its electrons. As a result, hydrogen gas (H₂) is produced. The gas forms little bubbles that you might see during the reaction. The remaining zinc combines with the chlorine atoms (Cl⁻) from the acid to form zinc chloride (ZnCl₂). So, to sum it up, when acid (like HCl) and metal (like zinc) react, they create hydrogen gas and a compound called zinc chloride. The hydrogen gas bubbles out, and the zinc chloride dissolves in the remaining acid.
A single displacement reaction, also known as a metal-acid reaction, occurs when hydrochloric acid (HCl) and zinc (Zn) are in contact. This reaction results in the creation of zinc chloride (ZnCl₂) and hydrogen gas (H₂) as the zinc metal displaces the hydrogen in the hydrochloric acid. While the acid's hydrogen ions lose electrons and undergo oxidation, the zinc atoms acquire electrons and undergo reduction. It is a redox (reduction-oxidation) reaction because it includes both oxidation and reduction reactions.
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5. Which of the following are examples of precipitation reactions? Select all that apply.
OKCl(ag) + AgNO3(aq) → KNO3(aq) + AgCl(s)
OHCl(aq) + NaOH(ag) → H₂O(1) + NaCl(aq)
O2 H2(g) + O2(g) → 2 H₂0 (1)
Mg(s) + O2(g) → MgO2 (s)
\(KCl(ag) + AgNO_3(aq)\) → \(KNO_3(aq) + AgCl(s)\) is the precipitation reactions.
What are precipitation reactions?A precipitate is an insoluble substance. A reaction in which insoluble solid precipitate is formed is called Precipitation Reaction.
For example, When Sodium Sulphate solution is mixed with Barium Chloride solution It forms Barium Sulphate and Sodium Chloride solution.
Precipitation reactions are usually double displacement reactions involving the production of a solid form residue called the precipitate.
These reactions also occur when two or more solutions with different salts are combined, resulting in the formation of insoluble salts that precipitate out of the solution.
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Minerals are formed through natural processes on Earth. They are mined from the ground. Do you think minerals are distributed evenly or unevenly across Earth's surface? Explain your reasoning
Minerals are distributed unevenly across Earth's surface.
The distribution of minerals on Earth's surface is influenced by a variety of factors, including geological processes, the history of the Earth's formation, and the movement of tectonic plates. As a result, minerals are not distributed evenly across the planet.
Certain regions of the Earth, such as areas with active volcanoes or those that have experienced geological events like mountain-building, may have higher concentrations of certain minerals than other regions. In addition, some minerals may be more abundant in certain types of rocks or geological formations.
Moreover, the accessibility and availability of minerals can also vary widely depending on factors like economic and political conditions, as well as environmental regulations. These factors can impact the profitability and viability of mining operations in different regions of the world.
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nuclear reactions can be written out in equation form with information about the nuclei that are produced. in one to two sentences, explain how you would identify the reaction as fusion, and give two different criteria.
Nuclear fusion involves the combination of two light nuclei to form a heavier nucleus with emission of energy.
A nuclear reaction equation is a representation of the change that takes place as one nucleus is converted to another. A nuclear transformation could be any of the following;
Nuclear fissionNuclear fusionTransmutationWe can know that a nuclear fusion is taking place when two nuclei come together to form a larger nucleus and emit energy. I would identify a nuclear fusion when;
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A barge pulls a freighter ship with a constant net horizontal force of 7500 N and causes the ship to move through the harbor. How much work is done on the ship if it moves 2000m?
work done on the ship if it moves 2000m is 15×\(10^{6}\)J
When an external pulling force is applied to an object, the object moves from one place to another or we can simply say that it changes its position. The amount of work required to move the object from its initial position to the final position is directly proportional to the force applied to the object.
Work done depends on two main components that is force and displacement of an object. The displacement of an object must happen along the line of action of the force in order for the force to do work on the object.
Work has units of energy because it is defined as an amount of (transferred) energy, so work usually has units of J (joules).
To calculate work the formula that we use is;
W = F × d, where W = work done, F = Force and d = distance
W = 7500N × 2000m
W = 15×\(10^{6}\)J
Therefore 15×\(10^{6}\)J of work is done on the ship.
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What makes a question testable? Can someone help me on this pls it has to be either a 4-5 sentence! this is a science question.
Answer:
testable questions are answer through observation or an experiment that provides evidence that the questions connects to the scientific concepts rather the opinion feelings
therefore the question can be tested through observation or experiment
Help easy valence electrons question (picture)
Answer:
4,7,2
Explanation:
Count the amount of electrons on the outer shell on each question.
a. 4 valence electrons
b. 7 valence electrons
c. 2 valence electrons
water will boil when...
Answer:
C
Explanation:
Calculate the volume of an
object with the following
dimensions:
6.0 cm x 8.0 cm x 2.0 cm
After a recrystallization, a pure substance will ideally appear as a network of large crystals.If this is not the case, it may be worthwhile to reheat the flask and allow the contents to cool more slowly. Small crystals may trap impurities.
A process for removing impurities from a compound in a solvent is known as recrystallization, sometimes known as fractional crystallisation.
The idea behind this method of purification is that most substances become more soluble at higher temperatures. This implies that when temperature rises, more solute can dissolve in a given amount of solvent.
In order to create a highly concentrated solution at a high temperature, an impure chemical must be dissolved (the impurities must also be soluble in the solvent). The remedy is chilled. As the temperature drops, the contaminants in the solution and the substance being cleansed become less soluble.
The impure stuff then crystallises before the impurities—assuming there was more impure substance than impurities. Due to the impurities' delayed crystallisation and subsequent retention in the solution, the impure substance will crystallise in a purer form. The more pure crystals now need to be separated, which requires a filtration procedure. Repeating the process is possible. The results of a recrystallization technique can be predicted using solubility curves.
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A car is moving at a speed of 55 km/h. is it possible to calculate the car's kinetic energy on this information? 1 no. we also need to know the car's mass 2 yes. kinetic energy is equal to half of the square of the car's speed 3no. we also need to know the direction motion of the car 4. yes. kinetic energy is equal to the square of the car's speed
NO LINKS PLS!!!!! ILL REPORT YOU
Answer:
the answer is 1; no, you also need to know the car's mass.
Explanation:
need help asap!!!!!!!!
Answer:
A Valence electron are the electrons in the outermost shell or energy level of an atom.
PLEASE ASNWER QUICK!!!! AND RIGHT ANSWERS!! 50 POINTS!!
2C2H2 (g) + 5O2(g) --> 4CO2(g) + 2H2O(g)
How many liters of C2H2 are required to produce 8 L of CO2 assuming the reaction is at STP?
L C2H2
Answer:
3.95 L
Explanation:
To solve this problem, we need to use stoichiometry and the ideal gas law to determine the amount of C2H2 required to produce 8 L of CO2 at STP.
First, we need to determine the number of moles of CO2 produced from 8 L at STP. The molar volume of an ideal gas at STP is 22.4 L/mol, so:
8 L CO2 * (1 mol CO2 / 22.4 L CO2) = 0.357 mol CO2
Next, we can use the balanced chemical equation to determine the number of moles of C2H2 required to produce 0.357 mol CO2. From the balanced equation, we see that 2 moles of C2H2 produce 4 moles of CO2, so:
2 mol C2H2 / 4 mol CO2 = 0.5 mol C2H2 / mol CO2
0.357 mol CO2 * (0.5 mol C2H2 / mol CO2) = 0.179 mol C2H2
Finally, we can use the ideal gas law to convert the number of moles of C2H2 to volume at STP. The ideal gas law is PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature. At STP, the pressure is 1 atm and the temperature is 273 K, so:
V = nRT / P = (0.179 mol) * (0.0821 Latm/(molK)) * (273 K) / (1 atm) = 3.95 L
Therefore, 3.95 L of C2H2 are required to produce 8 L of CO2 at STP.
what do you mean by chemical reaction
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.
A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.
Explanation:
hope it help
plss brainlys me
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products
Explanation:
Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
What is the reduction half-reaction for the following overall galvanic cell reaction? co2 (aq) 2 ag (s) --> co (s) 2 ag (aq)
The reduction half-reaction for the given overall galvanic cell reaction can be determined by breaking down the reaction into half-reactions for oxidation and reduction.
First, let's identify the oxidation half-reaction. In the overall reaction, we can see that carbon dioxide (CO2) is being reduced to carbon monoxide (CO), while silver (Ag) ions are being oxidized to silver metal (Ag). Therefore, the oxidation half-reaction can be written as:
2 Ag (s) → 2 Ag+ (aq) + 2 e-
Next, let's identify the reduction half-reaction. We can see that silver ions (Ag+) are being reduced to silver metal (Ag), while carbon dioxide (CO2) is being oxidized to carbon monoxide (CO). Therefore, the reduction half-reaction can be written as:
CO2 (aq) + 2 e- → CO (s)
Note that the reduction half-reaction is written in the reverse direction compared to the overall reaction because it represents the reduction of CO2, while the overall reaction shows the reduction of Ag+.
To balance the number of electrons transferred in both half-reactions, we can multiply the oxidation half-reaction by 2:
4 Ag (s) → 4 Ag+ (aq) + 4 e-
Now, the number of electrons transferred is balanced in both half-reactions.
In summary, the reduction half-reaction for the given overall galvanic cell reaction is:
CO2 (aq) + 2 e- → CO (s)
This half-reaction represents the reduction of carbon dioxide to carbon monoxide in the galvanic cell.
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Which statement describes Hund's rule? An electron occupies the lowest energy orbital that can receive it
All orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron
No more than two electrons can occupy the same orbital.
Answer:
76
Explanation:
its as and then its pro
The diagrams show the arrangements of carbon atoms in diamond and in graphite. Compare a use of diamond with a use of graphite, explaining each use in terms of the bonding and structure. In your answer you should use information from the diagrams.
The diagrams show the arrangements of carbon atoms in diamond and in graphite. The hybridization in diamond is sp³ and have tetrahedral shape while in graphite hybridization is sp² and is hexagonal ring shaped structure.
Diamond containing carbon atoms are strongly bonded chemically with other four carbons. The hybridization in diamond is sp³ and make perfect tetrahedral shape. Diamond used in jewelry making. they are used by surgeons in the cataract surgery. diamond is hard, used for cutting or drilling rock.
Graphite containing carbon atom are form the weak bond with weak forces. in graphite hybridization the carbon atom is sp² and make a hexagonal ring shape structure. The forces in the graphite allotropes present are weak that makes it useful material. it is used as lubricant. it is used in pencil. used in making electrodes.
Thus, The diagrams show the arrangements of carbon atoms in diamond and in graphite. The hybridization in diamond is sp³ and have tetrahedral shape while in graphite hybridization is sp² and make its shape as hexagonal structure.
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Using an unplugged iphone is what kind of energy
what is its energy transformation?
Answer: 0.26 watts
Explanation: The U.S. Energy Department says cellphone chargers use 0.26 watts of energy when plugged in after the phone is disconnected and 2.24 watts when the phone is charged and still connected.
which is the correct formula for the compound dinitrogen monoxide?
Answer: Dinitrogen Monoxide ( also called nitrous oxide )
is an inorganic ( not made from living matter) compound with the chemical formula of N2O.
Explanation:
Read above