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Evaporationis a type ofvaporizationthat occurs on thesurfaceof aliquidas it changes into the gas phase.[1]The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other. When a molecule near the surface absorbs enough energy to overcome thevapor pressure, it will escape and enter the surrounding air as a gas.[2]When evaporation occurs, the energy removed from the vaporized liquid will reduce the temperature of the liquid, resulting in evaporative cooling.[3]

On average, only a fraction of the molecules in a liquid have enough heat energy to escape from the liquid. The evaporation will continue until an equilibrium is reached when the evaporation of the liquid is equal to its condensation. In an enclosed environment, a liquid will evaporate until the surrounding air is saturated.

Evaporation is an essential part of thewater cycle. The sun (solar energy) drives evaporation of water from oceans, lakes,moisturein the soil, and other sources of water. Inhydrology, evaporation andtranspiration(which involves evaporation within plantstomata) are collectively termedevapotranspiration. Evaporation of water occurs when the surface of the liquid is exposed, allowing molecules to escape and form water vapor; this vapor can then rise up and form clouds. With sufficient energy, the liquid will turn into vapor.

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other.

Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure. Evaporation is a fundamental part of the water cycle and is constantly occurring throughout nature.

Evaporationis the process by which water changes from a liquid to a gas or vapor. Water boils at 212 degrees F (100 degrees C), but it actually begins to evaporate at 32 degrees F (0 degrees C); it just occurs extremely slowly. As the temperature increases, the rate of evaporation also increases.

Evaporationis a type ofvaporizationthat occurs on thesurfaceof aliquidas it changes into the gas phase.The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other. When a molecule near the surface absorbs enough energy to overcome thevapor pressure, it will escape and enter the surrounding air as a gas.When evaporation occurs, the energy removed from the vaporized liquid will reduce the temperature of the liquid, resulting in evaporative cooling.

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other

cacl2 +H2O+co2 as metal carbonate+ acid-------> salt+water+co2

Fe + 2HCL = FeCL2 + H2

P1V1/T1= P2V2/T22V1/300 = 1V2/273(273/150)V1= V21.82V1= V2Density at STP = mass/volume = m/1.82V1 = (5.46/1.82) g/dm3= 3 g/dm3

Option A is not an isoelectric because the other ions have 10 electrons in their shell. So option A is the answer.

chlorine..option Ait is not isoelectric as rest have 10 electrons whereas chlorine has 17 electrons

2NaOH+H2SO4=Na2SO4+2H2O

2NaOH+H2SO4= Na2SO4+2H2O

2NaOH + H2SO4 - NaSO4 + H2O

same as above Is the correct answer

2NaOH+H2SO4_____Na2SO4+2H2ONaOH+H2SO4___H___NaSO4+H2O

2NaOH+h²SO⁴>Na²SO⁴+2H²O

it is correct answer

2CaO +5C -----> 2CaC2 + CO2

Solution:CaO+C=CaC2+CO2Ca-1. Ca-1C-1. C-3O-1. O-2to balance C compounds multiply by 3 to the reactant i.e CaO+3C=CaC2+CO2now carbon compounds are balanced.now balance O compounds.....to balance that multiply by 2 on reactant side i.e 2Cao+3C=CaC2+CO2now oxygen compounds get balanced but 2 is multiplied to the the Ca compounds also ...... Therefore to balance the product side multiply by 2 to the reactant side i.e2CaO+3C=2CaC2+CO2but in this while multiplying to Ca also C compounds get multiplied i.e2×2=4 means now carbon compounds become 4......now to balance it on rectant side we have to multiply by 4on Carbon on reactant side....so that we get the answer as

2Cao+4C=2CaC2+CO2

A necessaryconditionto theformation of precipitationis that the air becomes saturated with water vapor. Saturation is the first step in theformation of precipitation(i.e. it is necessary but not sufficient). ... That is - you cannot add more water vapor to this parcel of air without changing its temperature.

AFrenkel defectorDislocation defectis a type of defect incrystalline solids. In an ionic crystal, this defect forms when an ion is displaced from its lattice position to an interstitial site, creating avacancyat the original site and aninterstitial defectat the new location without any changes in chemical properties.

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The reactants, A and B, combine to form a new single product, AB, which is always a compound.

Anexampleof acombination reactionis when hydrogen and chlorinereactto form hydrochloric acid

In chemistry, a formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity.

Look first of all just write the equation :

2 H 2 + O 2 -----------------------------> 2 H 2 O2 vol 1 vol 2 vol10 vol 5 vol -------------------------------> 10 vol

hence 10 volume of water vapour will get produced.....i hope you get the answer.

but how

CaO or calcium oxide is the chemical formula of quick lime.

Corrosion means degradation of material due to its reaction with its environment. Corrosion deteriorates physical properties of the metal. There are some advantages of corrosion.

a)Surface corrosion forms an oxide layer. It acts as a barrier for air and moisture and thereby preventing the inner metal from corrosion.

b)Some metals like zinc act as sacrificial anodes to prevent corrosion to other metals.

c)Galvanic corrosion is the principle that is used in batteries. Here, two metals carbon and zinc are intentionally mixed together in a electrolyte solution where zinc corrodes faster in order to generate electrical charge

Advantages of corrosion -

Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.Corrosion prevents corrosion : Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.Galvanic corrosion : The principle on which primary batteries work. In which one metal corrodes preferentially to another when both metals are in electrical contact, in the presence of an electrolyte.

There are some advantages of corrosion. Surface corrosion forms an oxide layer. It acts as a barrier for air and moisture and thereby preventing the inner metal from corrosion. Some metals like zinc act as sacrificial anodes to prevent corrosion to other metals. here are some benefits of corrosion. 1.protection:surface corrosion forms an oxide layer which further protects the inner metal from corrosion. corrosion prevents 2.corrosion:some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal. 3.galvanic corrosion:the principle on which primary batteries work.in which one metal corrodes preferrentially to another when both metals are in electrical contact,in the presence of an electrolyte

there are some advantages of corrosion.surface corrosion forms an oxide layer.it acts as barreir for air and moisture and thereby preventing the inner metal from corrosion.some metals like zinc act as sacrificial anodes to prevent corrosion to another metals.

The mass of the substance (m) deposited or liberated at any electrode is directly proportional to the quantity of electricity or charge (Q) passed.

thnxx

Liquids and solids exhibit practically no change ofsolubilitywith changes inpressure. Gases as might be expected, increase insolubilitywith an increase inpressure. Henry's Law states that: Thesolubilityof a gas in a liquid is directly proportional to thepressureof that gas above the surface of the solution.

Thus, increasing the temperature increases the solubilities of substances. For example, sugar and salt are more soluble inwaterat higher temperatures. But, as the temperature increases, the solubility of a gas in a liquid decreases. As temperature increases, the average kinetic energy of the gas molecules increases.

I don't know

please mention the complete details of the question!!

solid has more density,which is the best answer

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solid has more density, which is the good answer

solid has more density

solid has the density

solid has more density as compare to liquid

solid has more density than liquid

solid is the answer of this question

Demsity= mass/volume

So, solid occupies less volume or in other words density is inversely proportional to the volume. Therefore, solid has more density as compare to liquid.

solid has more density.correct answer.

solid has more density

solid has more density than liquid as the particles of the solid is tightly packed

solid has more denisty as compare to water

Solid. has more. densitu

solid has more density.

Diethyl ether

For E1 = Eocell – (0.0529/2)log(Zn2+/Cu2+) => Eocell – (1.5)(0.0529)........(1)

For E2 = Eocell – (0.059)..............(2)

Substract the eqns. (1) and (2) we get,

E1 – E2 = 0.059*2.5 = > 0.13225 VOLT

The cell that converts the chemical energy liberatedas a result of redox reaction to electrical energy is called a Daniel cell.

It has anelectrical potential of 1.1 V.

Set up

The setup for Daniel cell is as follows:

In a beaker a plate of zinc is dipped in a solution of zinc sulfate (ZnSO4).

In another beaker a plate of copper is dipped in a solution of copper (II) sulfate in another container. These plates of metal are called theelectrodesof the cell.

These electrodes behave as terminal to hold the electrons.

The two electrodes are connected via wire.

A salt bridge is placed between the two beakers. This provides a path for the movement of ions from one beaker to the other in order to maintain electrical neutrality.

Zinc electrode gets oxidized and hence releases electrons that flow through the wire towards the copper electrode.

The copper (II) sulfate solution releases copper ions Cu2+

At the anode:

Oxidation ---------------- loss of electrons.Zn --> Zn2++ 2e-

At cathode,

Reduction -------------gain of electrons.

Cu2++ 2e---> Cu

Zinc atoms being more reactive have a greater tendency to lose electrons than that of copper.The electrons in this cell moves from zinc anode to copper cathode through the wire connecting the two electrodes in the external circuit

A bulb placed within this circuit will glow and a voltmeter connected within this circuit will show deflection.

The net reaction of this cell is the sum of two half-cell reactions.Zn(s) + Cu2+(aq) --> Zn2+(aq) + Cu(s)

In a Daniel cell a salt bridge is placed between the two beakers containing a solution of zinc sulfate (ZnSO4) and a solution of copper (II) sulfate respectively. This provides a path for the movement of ions from one beaker to the other in order to maintain electrical neutrality

Galvanic cells, also known as voltaic cells, are electrochemical cells in which spontaneous oxidation-reduction reactions produce electrical energy.

Galvanic cells, also known as voltaic cells, are electro chemical cells in which spontaneous oxidation-reduction reactions produce electrical energy.The Daniell Cell is divided into 2 half-cells connected by a wire and a salt bridge to complete the electrical circuit..In the Daniell cell, copper and zinc electrodes are immersed in a solution of copper (II) sulfate (CuSO4 (aq)) and zinc (II) sulfate (ZnSO4 (aq)) respectively. The two half cells are connected through a salt bridge. Here zinc acts as anode and copper acts as cathode.At the anode, zinc undergoes oxidation to form zinc ions and electrons. The zinc ions pass into the solution. If the two electrodes are connected using an external wire, the electrons produced by the oxidation of zinc travel through the wire and enter into the copper cathode, where they reduce the copper ions present in the solution and form copper atoms that are deposited on the cathode.

Sodium benzoateis apreservative. As a food additive,sodium benzoatehas the E number E211. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments

yes it isisa preservative because as a food additive sodium is used as e number E211.it is also used inacidic food ,salad dressings,carbonated drinks,pickles.

it is the process in which 3 process are take place 1_emasculation 2_bagging3_dusting

Inchemistry,orbital hybridisation(orhybridization) is the concept of mixingatomic orbitalsinto newhybrid orbitals(with different energies, shapes, etc., than the component atomic orbitals) suitable for the pairing of electrons to formchemical bondsinvalence bond theory.

In chemistry, orbital hybridisation is the concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory.

the process of an animal or plant breeding with an individual of another species or variety.

"these irises are the products of hybridization carried out by a plant breeding firm"

it is the overlapping of one orbital to other

hybridization is the process of

Ans :- Generally single bondedcarbonissp3and double bondedcarbonis sp2.If acarbonhas 2 double bonds then it is sphybridised. Those compound in which centralatomcontain 4 sigma bond shows sp 3hybridisation. For example in methane ,carbonis sp 3hybridised.

The hybridization of NH3 is sp^3.

Reason:

3 bond pairs

And one lone pair

In total its 3+1=4

4 stands for sp^3.

Like my answer if you find it useful!

the answer is h2o because the answer is yes then please let me know if you have any questions or need any further information please contact me at the answer is y

Correct ans is option (c) 6

Na < Al < C < O < N < F

remember O< N , because.. N has half filled P orbital.

you

You sure 100%

i. Action of Heat:- When the crystals of washing soda are heated strongly then all the water of crystallizationevaporatesleaving behind anhydrous sodium carbonate.

ii. If limestone is heated strongly, itbreaksdown to form calcium oxide and carbon dioxide. Calcium oxide is also called quicklime. It is yellow when hot, but white when cold. It decomposes into calcium oxide and carbon dioxide .this is a thermal decomposition reaction.

RutherfordAlphaParticleScattering Experiment

Most of the fast, highly chargedalphaparticles went whizzing straight through undeflected. This was the expected result for all of the particles if the plum pudding model was correct.

Some of thealphaparticles were deflected back through large angles. ...

A very small number ofalphaparticles were deflected backwards!

The cell was first discovered byRobert Hookein 1665 using a microscope. The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s.

Democritus was a Greek philosopher who was the first person to use the term atom (atomos:meaning indivisible). He thought that if you take a piece of matter and divide it and continue to divide it you will eventually come to a point where you could not divide it any more. This fundamental or basic unit was what Democritus called an atom.He called this the theory of the universe:All matter consists of atoms, which are bits of matter too small to be seen.There is an empty space between atomsAtoms are completely solidAtoms have no internal structureEach atom (of a different substance) is different in size, weight and shape.

it means that Democritus discovered atoms

JJ Thomson was discovered the atom.

thanks Rahul

J.J Thomson discovered atom

Robert brown discovered nucleus

Robert brown discovered nucleus

Anthracene, a tricyclic aromatic hydrocarbon found in coal tar and used as a starting material for the manufacture of dyestuffs and in scintillation counters. Crude anthracene crystallizes from a high-boiling coal-tar fraction. It is purified by recrystallization and sublimation.

A solid is typically placed in a sublimation apparatus and heated under vacuum. Under this reduced pressure, the solid volatilizes and condenses as a purified compound on a cooled surface (cold finger), leaving anon-volatile residue of impurities behind.

The physical appearance of an individual is calledthe phenotypeoption c

4-ethyl-3-methyl hex-1-ene

3-Ethyle-4-Methyle hex-5-yne

4-Ethyle-3-MethyleHex-1-yne