Is smelting a chemical or physical process?

Answers

Answer 1
Smelting is chemical because you are refining the ore. Also when you heat substances, there is a chance you will decompose some compounds in the process.

Related Questions

The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar heads of neighboring phospholipids and glycolipids, consists of a

Answers

The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar heads of neighboring phospholipids and glycolipids, consists of a hydroxyl group or -OH. From the name of the molecule, you can easily say that it should contain an hydroxyl group as it has an -ol in its name. Alcohol is a polar molecule so this part of cholesterol should be the polar portion. Cholesterol is a modified steroid and a lipid molecule. It is an important structural molecule of all cell membranes, maintaining fluidity and structural integrity. It is also a starting material for the synthesis of bile acid, vitamin D and steroid.

How many moles are there in a 1.40 kg bottle of water?

Answers

n (H2O) = m/M

m (H2O) = 1.4 kg = 1400g

M (H2O) = 2 x 1 + 16 = 18g/mol

n (H2O) = 1400/18 = 77.8mol

H2O has a Hvap = 40.7 kJ/mol. What is the quantity of heat that is released when 27.9 g of H2O condenses?

Answers

H=40.7 kJ/mol
m=27.9 g
M(H₂O)=18.0 g/mol

n=m/M(H₂O)

Q=Hn=Hm/M(H₂O)

Q=40.7*27.9/18.0=63.1 kJ

Answer:

Quantity of heat released = -63.1 kJ

Explanation:

Given:

Enthalpy of vaporization of water, ΔHvap = 40.7 kJ/mol

Mass of water, m = 27.9 g

To determine:

The amount of heat (Q) released

Explanation:

The reaction is: H2O(g) ↔ H2O(l)

The amount of heat evolved during condensation which involves a phase transition from vapor to liquid is given as:

[tex]Q = n*\-Delta Hvap[/tex]

n = moles of water

Since this is a condensation process: ΔHcond = -ΔHvap

[tex]Q = \frac{27.9 g}{18 g/mol} * -40.7 kJ/mol = -63.1 kJ[/tex]

Which pair of elements is most apt to form a molecular compound with each other?

Answers

The pair of elements which is most apt to form a molecular compound with each other would be sulfur and fluorine. In general, a nonmetal and a gas is most likely to form a molecular compound. Considering two metal molecules, most likely these metal atoms would not form a molecule since they are both positive when in ionic form and tends to donate electrons to another atom. For a situation where you have a nonmetal and a metal atom, it would not still be possible to form a molecular atoms since they are likely to form ionic bonds resulting to an ionic compound.

How is gamma radiation different from other types of electromagnetic radiation

Answers

The gamma radiation is one of the seven electromagnetic radiations. The other six are: radio waves, microwaves, infrared, optical, ultraviolet and X-rays. The difference between them is  the amount of energy found in the photons. The gamma rays have the significant energy in the photons from all other electromagnetic waves.It is also characterized with the shortest wavelengths. 

Air contains water in a gaseous form called _____.

Answers

Air contains water in a gaseous form called water vapor or aqueous vapor.
Water vapor normally forms from liquid water through a process called evaporation. These are small droplets of water suspended in air. And when these water vapors changed into liquid water, this process is called condensation.

Air contains water in a gaseous form called water vapor

Cu(NO3)2 + Zn (s) → Cu (s) + Zn(NO3)2 is an example of which type of reaction?

Combustion

Decomposition

Single-displacement

Double-displacement

Answers

Single replacements since cu is being replaced by zn

Answer:

Single-displacement

Explanation:

When fast moving electrons are released from an atom by way of a beta particle, the atom ends up with...
one less proton and one more neutron.
one more proton and one less neutron.
the same number of protons and two more neutrons.
two more neutrons and the same number of protons.

Answers

The correct option is ONE MORE PROTON AND ONE LESS NEUTRON. In beta decay, a neutron change into a proton and an electron. The proton remains in the nucleus while the electron is given off with high energy, this electron is called beta particle; its emission results in one more proton and one less neutron. This implies that the atomic mass number of the atom is unchanged while the atomic number increases by 1.

What is the concentration of k+ ions in a 0.045 m k2co3 solution assuming complete dissociation?express the concentration in molarity?

Answers

Answer: The concentration of [tex]K^+[/tex] ions in the solution is 0.09 M

Explanation:

We are given:

Concentration of [tex]K_2CO_3[/tex] = 0.045 M

The chemical equation for complete dissociation of potassium carbonate follows:

[tex]K_2CO_3(aq.)\rightarrow 2K^+(aq.)+CO_3^{2-}(aq.)[/tex]

By stoichiometry of the reaction:

1 mole of potassium carbonate produces 2 moles of potassium ions and 1 mole of carbonate ions.

So, the concentration of potassium ions in the given solution = [tex](2\times 0.045M)=0.09M[/tex]

Hence, the concentration of [tex]K^+[/tex] ions in the solution is 0.09 M

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In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:
N2(g) + 3H2(g) → 2NH3(g) + 100.4 kJ
A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure. What is the ΔH in kJ of heat released per mole of NH3(g) formed?

A.)50.2 kJ
B.)50.2 kJ
C.)4 kJ
D.)4 kJ

Answers

Since the coefficient of NH3 is 2, 100.4 kJ of heat is released when 2 moles of NH3 are formed. So, when one mole of NH3 is formed, half of the heat would be produced or 50.2 kJ.

Find the no. Of electron involved in the electro deposition of 63.5g of cu from a solution of cuso4

Answers

This is a redox reaction, meaning reduction-oxidation reaction. This represents the reaction in one side of the electrode in an electrolysis set-up. First, we find the oxidation number of Cu in CuSO4:

(ox. # of Cu)+ ox.# of S + 4(ox.# of oxygen) = 0
(ox. # of Cu) + (6) + 4(-2) = 0
ox. # of Cu = 2+

CuSO4 ---> Cu + SO42-
Cu2+ + SO42-  ---->  Cu + SO42-
Cu2+ -----> Cu + 2e-   (net ionic reaction)

The stoichiometric equation would be 2 electrons per mole Copper. Copper has a molar mass of 63.5 g/mol. Then, it would only need 2 electrons.


Which of the following reactions is a neutralization reaction? A. ZnCl2(aq) + CaCrO4(aq) → ZnCrO4(s) + CaCl2(aq) B. HNO3(aq) + LiOH(aq) → H2O(l) + LiNO3(aq) C. 2NaOH(aq) + MgCl2(aq) → Mg(OH)2(s) + 2Na+(aq) + 2Cl−(aq) D. 4Fe(s) + 3O2(g) → 2Fe2O3(s)

Answers

Neutralization reaction means the reactants must be one acid and one alkali, and the product will be H2O and metal salt.

The only one satisfying this will be B
Final answer:

A neutralization reaction is a chemical reaction between an acid and a base that results in water and a salt. Option B, HNO3(aq) + LiOH(aq) → H2O(l) + LiNO3(aq), is an example of this as it involves the reaction between an acid (Hydrogen Nitrate) and a base (Lithium Hydroxide) to form water and a salt (Lithium Nitrate).

Explanation:

In chemistry, a neutralization reaction is a type of chemical reaction where an acid and a base react to form a salt and water. Looking at the provided options, the reaction B. HNO3(aq) + LiOH(aq) → H2O(l) + LiNO3(aq) is a neutralization reaction. This is because Hydrogen Nitrate (HNO3) is an acid and Lithium Hydroxide (LiOH) is a base. The result of their interaction is water (H2O) and a salt (LiNO3).

A neutralization reaction is characterized by an acid reacting with a base and forming water and a salt, which is what happens in this reaction. Hence, option B depicts a neutralization reaction.

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The two naturally occurring isotopes of copper are copper-63 and copper-65. how many neutrons are in one atom of copper-65? 29 34 36 65

Answers

It's 36. Since copper has 29 protons you do 65-29=36

Answer: The number of neutrons in copper-65 are 36.

Explanation:

Atomic number is defined as the number of protons that are present in an atom. It is represented as 'Z'

Z = Atomic number = Number of protons

Atomic mass of an element is defined as the sum of number of neutrons and number of protons that are present in an atom. It is represented as 'A'.

A = Atomic mass = Number of neutrons + Number of protons

For Copper, the atomic number is 29.

We are given:

Atomic mass of copper-65 = 65

Number of neutrons = 65 - 29 = 36

Hence, the number of neutrons in the given isotope of copper are 36.

Determine the ka of an acid whose 0.294 m solution has a ph of 2.80. 1.2 x 10-5 8.5 x 10-6 2.7 4.9 x 10-7 5.4 x 10-3

Answers

1) Calculate [H+] from the pH:

pH = log { 1 / [H+] } = - log [H+]

=> [H+] = 10 ^ (-pH)

=> [H+] = 10 ^ (-2.80) = 0.00158

2) Assume the stoichiometry 1:1

=> HA aq ---> H(+) aq+ A(-) aq

=> [A-] = [H+] = 0.00158

[HA] = 0.294 – 0.00158 = 0.29242

  3) Calculate Ka

Ka = [H+] *[A-] / [HA] = (0.00158)*(0.00158) / 0.29242 =8.54 * 10^ -6

Answer: 8.5 * 10^ -6




We have that the acid dissociation constant(Ka)  is mathematically given as

Ka=8.54e-6

The acid dissociation constant(Ka)

Question Parameters:

Generally the equation for the H+ pH value  is mathematically

pH = log { 1 / [H+] }

[tex][H+] = 10 ^{-pH}[/tex]

[H+]= 0.00158

Where the stoichiometric ratio is 1:1

HA aq ---> H(+) aq+ A(-) aq

[H+] = 0.00158

[HA] = 0.294 – 0.00158

[HA]= 0.29242

Therefore

[tex]Ka =\frac{ [H+] *[A-]}{ [HA] }\\\\Ka=\frac{ (0.00158)*(0.00158)}{0.29242}[/tex]

Ka=8.54e-6

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Which statement correctly describes an electrode in a voltaic cell of copper and hydrogen?

A. Copper atoms become copper ions at the anode because the SRP is more positive.

B. Hydrogen ions become diatomic hydrogen at the cathode because hydrogen is always reduced in a voltaic cell.

C. Copper ions become copper atoms at the cathode because copper is always reduced in a voltaic cell.

D. Diatomic hydrogen becomes hydrogen ions at the anode because the SRP is more negative.

Answers

Copper ions become copper atoms at the cathode because copper is always reduced in a voltaic cell.

How tall would a stack of 1000 pennies in centimeters

Answers

Final answer:

To find the height of a stack of 1000 pennies, multiply the thickness of one penny (1.52mm) by 1000, resulting in a stack 1520mm tall, which is 152 centimeters.

Explanation:

The question concerns how tall a stack of 1000 pennies would be in centimeters. To answer this, we must know the thickness of one penny. If we assume the thickness of a single penny is approximately 1.52mm (0.0598 inches), we can calculate the height of 1000 pennies by multiplying the thickness of one penny by the number of pennies in the stack. Since there are 10 millimeters in 1 centimeter, we'll need to convert millimeters to centimeters.

Here is the calculation:

Thickness of one penny = 1.52mmHeight of 1000 pennies = 1000 x 1.52mm = 1520mmHeight in centimeters = 1520mm / 10 = 152cm

The density of a gas is 1.49 g/l at a temperature of 24 âc and a pressure of 0.787 atm . calculate the molar mass of the gas.

Answers

Remember the formula. You are given tempertature, grams, and pressure. PV=NRt

The molar mass of the gas is approximately [tex]47.56 \text{ g/mol}[/tex]

To calculate the molar mass of the gas, we can use the Ideal Gas Law, which is given by:

[tex]\[ PV = nRT \][/tex]

where:

- [tex]\( P \)[/tex] is the pressure of the gas,

- [tex]\( V \)[/tex] is the volume of the gas,

- [tex]\( n \)[/tex] is the number of moles of the gas,

- [tex]\( R \)[/tex] is the ideal gas constant, and

- [tex]\( T \)[/tex]  is the temperature of the gas in Kelvin.

First, need to convert the temperature from Celsius to Kelvin:

[tex]\[ T(K) = T(\°C) + 273.15 \] \[ T(K) = 24 + 273.15 = 297.15 K \][/tex]

The density [tex]\( \rho \)[/tex] of the gas is given as 1.49 g/L. The density is the mass [tex]\( m \)[/tex] divided by the volume [tex]\( V \)[/tex]:

[tex]\[ \rho = \frac{m}{V} \][/tex]

express the mass in terms of the molar mass [tex]\( M \)[/tex] and the number of moles [tex]\( n \)[/tex]:

[tex]\[ m = M \cdot n \][/tex]

Substituting this into the density equation gives:

[tex]\[ \rho = \frac{M \cdot n}{V} \][/tex]

Now, can rearrange the Ideal Gas Law to solve for [tex]\( n \)[/tex]:

[tex]\[ n = \frac{PV}{RT} \][/tex]

Substituting this expression for [tex]\( n \)[/tex]  into the density equation gives:

[tex]\[ \rho = \frac{M \cdot PV}{RTV} \][/tex]

[tex]\[ \rho = \frac{M \cdot P}{RT} \][/tex]

Now, can solve for the molar mass [tex]\( M \)[/tex]:

[tex]\[ M = \frac{\rho RT}{P} \][/tex]

know that the ideal gas constant [tex]\( R \)[/tex] is 0.0821 L·atm/(mol·K), so we can plug in the values:

[tex]\[ M = \frac{1.49 \text{ g/L} \cdot 0.0821 \text{ L\·atm/(mol\·K)} \cdot 297.15 \text{ K}}{0.787 \text{ atm}} \] \[ M = \frac{1.49 \cdot 0.0821 \cdot 297.15}{0.787} \] \[ M = \frac{37.41}{0.787} \] \[ M \approx 47.56 \text{ g/mol} \][/tex]

Therefore, the molar mass of the gas is approximately 47.56 g/mol.

Which analogy can best be likened to the activation energy of a chemical reaction?

Answers

The activation energy of a reaction is the minimum energy that must be overcome in order for the reaction to take place. One way of reaching the activation energy is by manipulating the process conditions like pressure or temperature. But the most common method is by adding an enzyme. An enzyme speeds up the rate of the reaction but does not actively take part in it.

An analogy would be pushing heavy wooden block down a slope. No matter how many people push on it, the block won't move because of friction. But if you spill oil on the floor, the block would effortlessly move down the slope. The oil here is like an enzyme in a reaction.

based on the nebular Theory, which of these is a step in the formation of a new planetary system?

A) evaporation of water
B) nuclear fission of gases
C) repulsion of gaseous masses
D) change of gases into liquids

Answers

Final answer:

The formation of a new planetary system involves the condensation of solid particles, accretion and collision of planetesimals, and the formation of protoplanets.

Explanation:

The formation of a new planetary system according to the nebular theory involves several steps. One important step is the condensation of solid particles from the solar nebula, which leads to the formation of planetesimals. The planetesimals then continue to accrete and collide with each other, gradually growing in size. This process eventually results in the formation of protoplanets, which are still in the process of forming into fully developed planets. Therefore, the correct answer is C) repulsion of gaseous masses.

You are given 450.0 g of a 0.7500 molal solution of acetone dissolved in water. how many grams of acetone are in this amount of solution?

Answers

Molality is the number of moles dissolved in one kilogram of solvent.
m = n/kg of solvent
n = mass of solute / molar mass of solute
Acetone's chemical formula is C3H6O. Therefore, its molar mass = 12*3 + 6*1 + 1*16 = 58g = 0.058kg
n = mass of solute / 0.058
We have the molality = 0.7500 and the mass of solution = mass of solvent + mass of solute = 450 g = 0.45 kg
Therfore, mass of solvet = 0.45 - mass of solute
0.75 = n / 0.45 - mass of solute
0.75 = (mass of solute / 0.058) / (0.45 - mass of solute)
Let mass of solute = x
0.75 = (x/0.058) / (0.45 - x)
0.3375 - 0.75x = x/0.058
x = 0.019575 - 0.0435x
1.0435x = 0.019575
x = 0.01875 kg
mass of acetone = 0.01875 kg = 18.75 grams
Final answer:

To find the grams of acetone in the given solution, we can use the formula for molality and calculate the mass of acetone based on the molality, molar mass of acetone, and mass of the solvent.

Explanation:

The mass of the solution is given as 450.0 g and the molality is given as 0.7500 molal. To find the grams of acetone in the solution, we can use the formula for molality:

Molality (m) = moles of solute / mass of solvent (in kg)

Since 0.7500 molal corresponds to 0.7500 mol of acetone per 1 kg of water, we can calculate the mass of acetone by multiplying the molality by the molar mass of acetone and the mass of the solvent:

Mass of acetone = 0.7500 molal * (58.08 g/mol) * (0.4500 kg)

Therefore, there are 22.52 grams of acetone in this amount of solution.

a common greenhouse gas containing only hydrogen and oxygen

Answers

A greenhouse gas is one that leads to global warming, by the absorption of infra-red radiation re-emitted by the ground. Common greenhouse gases include carbon dioxide and methane. Surprisingly, water vapour (which contains only oxygen and hydrogen) is also a greenhouse gas and can contribute to global warming. 

A student performs an experiment that produces solid sodium chloride. He uses four different catalysts and lets the reaction run for two minutes, and then removes the sodium chloride product. Which is the best way for him to make a consistent measurement that would show the different amounts of sodium chloride produced?

Answers

If these were the missing choices:
Measure the product separately on four different scales.
Measure all of the product together and divide by four.
Measure the four products separately, but using the same scale each time.
Measure the amount of sodium chloride in one sample every 10 seconds.

My answer:
MEASURE THE FOUR PRODUCTS SEPARATELY, BUT USING THE SAME SCALE EACH TIME.

This is to ensure that the scale measurement is consistent. It is easier to determine the changes in amount if all use the same scale rather than using different scale for each product.

Answer:

☆☆ Measure the four products separately, but using the same scale each time. option C

Explanation:

He cannot do this without affecting at the same time the evolution of the reaction, and of course by doing it on one sample only he will not be able to compare.

Which of the following statements is not true regarding physical properties and changes?

A. Physical changes include evaporating, boiling, and dissolving.
B. Physical changes can change compounds into elements.
C. Physical properties can be observed without any change in the substance's identity.
D. A series of physical changes, such as filtration and heating, can be used to separate substances with different physical properties.

Answers

I think it is B, but i am not sure

Answer: Option (B) is the correct answer.

Explanation:

Physical properties and changes are defined as the property or changes that does not cause any change in the chemical composition of a substance.

For example, cutting a piece of sodium with knife is a physical change.

Whereas boiling point, density, melting point etc are all physical changes.

On the other hand, changes that bring change in chemical composition of a substance are known as chemical changes.

For example, reactivity, toxicity etc are all chemical changes.

Hence, we can conclude that the statement physical changes can change compounds into elements, is not true regarding physical properties and changes.

How many n2o4 molecules are contained in 76.3 g n2o4? the molar mass of n2o4 is 92.02 g/mol?

Answers

Answer:[tex]4.98\times 10^{23}[/tex] molecules

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the number of moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{76.3g}{92.02g/mol}=0.83 moles[/tex]

1 mole of [tex]N_2O_4[/tex] contains =[tex]6.023\times 10^{23}[/tex] molecules

0.83 moles of [tex]N_2O_4[/tex] contains =[tex]\frac{6.023\times 10^{23}}{1}\times 0.83=4.98\times 10^{23}[/tex] molecules

Thus total number of molecules in 76.3 g of [tex]N_2O_4[/tex] is [tex]4.98\times 10^{23}[/tex] molecules

Taking into account the definition of molar mass and Avogadro's number, 4.99×10²³ molecules are contained in 76.3 g of N₂O₄.

Avogadro's Number

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

Moles that contain 76.3 g of N₂O₄

Being the molar mass of N₂O₄ is 92.02 g/mol, you can apply the following rule of three: If by definition of molar mass 92.02 grams of the compound are contained in 1 mole, 76.3 grams are contained in how many moles?

[tex]amount of moles=\frac{76.3 gramsx1 mole}{92.02 grams}[/tex]

amount of moles= 0.829 moles

Molecules contauned in 0.829 moles of N₂O₄

Then you can apply the following rule of three: If by definition of Avogadro's number, 1 mole of the compound contains 6.023×10²³ molecules, 0.829 moles contains how many molecules?

amount of molecules= (6.023×10²³ molecules× 0.829 moles)÷ 1 mole

amount of molecules= 4.99×10²³ molecules

Finally, 4.99×10²³ molecules are contained in 76.3 g of N₂O₄.

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Avogadro's Number:

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A hurricane track gives the probability of a hurricane following a specific path. What type of scientific model is this?

Answers

I would say this could be called a hurricane prediction model that models what track a hurricane will follow which is most likely computer based and includes as complete a set of variables about the hurricane as possible such as wind speed and direction, location, air temperatures, date and perhaps past behaviour of similar hurricanes among many other variables.

What type of graph shows the relationship between two quantities as those quantities are changing?

Answers

Line Graphs show 2 quantities while they change.

If you are given a 1.0 L (1000mL) of an unknown liquid which has the mass of 500 grams it is most likely which of the above substances? Show work to back up your answer. Distilled water density 1.0 g/cm^3 propane density 0.494 g/cm^3 salt water density 1.025 g/cm^3 liquid gold density 17.31g/cm^3

Answers

Given in the problem is the mass of the liquid (500 grams) and the volume of the liquid (1000 ml = 1000 cm^3).

We can use these two givens to calculate the density of the liquid using the following rule:
density = mass / volume
density = 500 / 1000 = 0.5 grams / cm^3

Comparing the calculated density with the choices we have, we can deduce that the liquid is most likely to be propane with density 0.494 g / cm^3

Which type of chemical bond involves the sharing of valence electrons between two atoms?

Answers

Covalent bond is the type of bond which involves the sharing of valence electrons between two atoms. 
This bond usually arises from the equal attraction of the nuclei of the two atoms for the electrons shared.

Ionic bond, on the other hand, arises due to the transfer of electrons from the valence shell of one atom to the valence shell of the other.

Answer:

Nonpolar Covalent

what conclusion did rutherford draw from this experiment?

Answers

The results of this experiment gave Rutherford the means to arrive at two conclusions: one, an atom was much more than just empty space and scattered electrons and two, an atom must have a positively charged center that contains most of its mass (which Rutherford termed as the nucleus).

Final answer:

From his experiments, Rutherford deduced two main conclusions: first, the majority of an atom's space is empty, and second, the alpha particles' drastic deflections were due to a highly concentrated, positive charge, i.e., the atomic nucleus. The nucleus, according to Rutherford, is 100,000 times smaller than the atom.

Explanation:

Ernest Rutherford, after conducting multiple experimental runs, arrived at two conclusions with respect to the internal structure of atoms:

Most of the atom's space is essentially empty, evidenced by the fact that the majority of fast-moving alpha particles passed through the gold atoms undeflected.A small portion of the alpha particles deflected drastically, implying that they had encountered a highly concentrated, positive charge within a small fraction of the atom's space. This was interpreted as the atomic nucleus.

Rutherford's theory suggested that the nucleus was about 10-15 m in size, which made it 100,000 times smaller than the atom itself. The experiment had a profound impact on the field of Physics, leading Rutherford to propose that nearly all the mass of atoms is concentrated in their nucleus. This revolutionary understanding significantly altered the then-existing atomic model and paved the way for a deeper understanding of atomic structure.

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In a voltaic cell, where does the reduction take place?

Answers

Cathode is the correct answer #plato

Answer : The reduction reaction takes place at cathode.

Explanation :

Voltaic cell : It is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy.

In the voltaic cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode.

For example : The redox reaction occurs between the zinc and copper sulfate.

The balanced two-half reactions will be,

Oxidation half reaction (cathode) : [tex]Zn(s)\rightarrow Zn^{2+}(aq)+2e^-[/tex]

Reduction half reaction (anode) : [tex]Cu^{2+}(aq)+2e^-\rightarrow Cu(s)[/tex]

Thus the overall reaction will be,

[tex]Zn(s)+Cu^{2+}(aq)\rightarrow Zn^{2+}(aq)+Cu(s)[/tex]

Hence, the reduction reaction takes place at cathode.

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