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is O2^- Bond order = NB - Na/2 = 10 - 7 / 2 = 1.5

Explanation:A salt BRIDGE, in electrochemistry, is a laboratory device used to connect the oxidation and reduction half-cells of a galvanic CELL (voltaic cell), a type of ELECTROCHEMICAL cell. It maintains electrical neutrality within the internal CIRCUIT, preventing the cell from RAPIDLY running its reaction to equilibrium.

trochemical cell is a device CAPABLE of EITHER GENERATING electrical ENERGY from CHEMICAL reactions or using electrical energy to cause chemical reactions.

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4Fe+2O ARROW 2FE2O3 is the REQUIRED REACTION

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Option A i.e nickle gets oxidized. Explanation:ACTUALLY in CASE of a chemical REACTION, the more reactive element displaces the less reactive element from  its salt solution. In this case, nickel would be able to displace silver from its salt solution i.e. from the silver nitrate form. This reaction would be indicated by the color that appears. Actually, silver nitrate is inorganic in nature. The formula for silver nitrate is AgNo3. It changes into black color whenever it is introduced into any organic compound. The substance that REDUCES other substance from its salt solution actually acts as a REDUCING agent and itself gets oxidized. Here nickel displaces AgNo3 from its salt solution and hence gets oxidized or a reducing agent.

of ELECTRONS that transfered in the RATIO 2:1:3then MOLE RATIOS 1/2: 1: 1/3 = 3:6:2

The OPTIONS (C) is not correct.Explanation:In a DANIELL cell, zinc rods are dipped into a SOLUTION of copper sulphate which is in turn CONNECTED to a copper rod dipped into a solution of copper sulphate.The transformations observed are:The zinc rod gets corroded gradually and its mass reduces, HOWEVER the concentration of Zn2+ increases and its mass increases. Additionally, the blue colour of the copper sulphate solution disappears and becomes colourless.

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Explanation:Example of CORROSION: Rusting of IRON. Now, coming back to the question, the oxidation potentials of Zn & Fe are as FOLLOWS: Oxidation POTENTIAL of Zn= 0.76 V Oxidation Potential of Fe= 0.44 V Since, the oxidation potential of Zn is higher than Fe, it looks that Zn is more reactive towards oxidation. However, there is a catch here. Zn is actually , more resistant towards corrosion than Fe.

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E. F. MOLE is the SO unit of amount of substance. G. One mole of any gas occupies a volume of 22.4 dm3 at standard temperature (0 DEGREE Celsius) and pressure (1 atm) (STP). the volume of 22.4 dm3 at STP is known as molar volume of a gas. H. mass can neither be created nor destroyed. I. when two elements A and B form more than one COMPOUNDS, the masses of element B that combine with a GIVEN mass of A are always in the ratio of small whole numbers.

%CARBON=37.5%Explanation:3g Carbon REACTS with 5g Oxygen.So, the Total PRODUC will be 8g in mass.Now,Percentage of Carbon in Product is equals to=> mass of Carbondivided by mass of compound*100%of Carbon=>3g÷8g*100%of Carbon=>37.5%Jai Shree Radhe Radhe

aim : the OBJECTIVE of the experimentapparatus : MATERIALS REQUIRED for the experiment procedure : the method and PERFORMANCE of the experiment observations : what you observe in the experiment conclusion : hence you conclude the objective of the experiment

By ADDING 1ml of sulphuric ACID DROP by drop with continuous stirring to large AMOUNT of WATER.

Because the energy of this orbital is lower COMPARED to the energy LEVEL of other ORBITALS.

1.875 gm.Explanation:Quantity of water = 500gm (Given)Freezing point = 0.2K (Given)Kf solvent = 3.2 (Given)DEPRESSION in Freezing point - ΔT = i × kf × m where m is the molarity of the solvent  , Kf is the cryoscopic  constant and t is the temperature. THEREFORE, 0.2 = 3.2 × x/ 60 × 0.5x = 30 × 2/32x = 30/16x = 1.875Thus, the amount of uread required is 1.875 gm.

Explanation:Quantity of glucose solution =  0.1 mol (Given)TEMPERATURE = 300k (Given)Vapour pressure of water = 0.03 bar (Given)THUS, N(glucose) = 0.1 molW (water) = 1 L = 1 kgn (water) = 1000/18 = 55.56 molMole fraction of the water -X(water) = 55.56 / (55.56 + 0.1) = 0.9998Vapour pressure of glucose solution is CALCULATED by -P(solution) = P°(water)x(water)= 0.03 × 0.9998= 0.02998 barTherefore, the vapour pressure of glucose soln is 0.02998 bar.

nt methods to determine the molar mass.In case of any COMPOUND, molar mass indicates the atoms, ions, or anything that constitutes of the compound i.e. the number of molecules, ions or atoms contained in that particular compound. There are a number of ways in which we can determine the molar mass of a compound.1. The first hint is from the chemical formula of that particular compound and it indicates the atoms and total number if atoms present.2. The second method is to find from the atomic WEIGHT that suggests the ELECTRONIC CONFIGURATION and number of atoms present.3. We NEED to add the individual numbers finally and then convert it into moles or in grams to get the final figure.

Explanation:The Hoff FACTOR is a measure of the solvent's impact on the colligative properties like the osmotic pressure, relative vapour pressure REDUCTION, the elevation of the boiling point, and the depression of the freezing point. It is the proportion between the real particle concentration generated when the material is DISSOLVED and a substance concentration as CALCULATED from its mass. It is represented as - i = Normal molar mass/Abnormal molar mass A substance is said to have an abnormal molecular or molar mass when the substance's molecular mass is DETERMINED by measuring any of its colligative properties that differs from the theoretically expected value.

Colligative properties of the solution depend upon the amount of SOLUTE ADDED to the solution.They are of four types:Relative lowering in VAPOUR pressure. Elevation in BOILING point. DEPRESSION in freezing point. Osmotic pressure.

Explanation:According to the HENRY's law - At a steady temperature, the quantity of a gas that dissolves in a particular form and the quantity of LIQUID is DIRECTLY proportional to that gas's partial pressure in equilibrium with that liquid.It is an equivalent WAY of saying the law is that a gas's solubility in a liquid is directly proportional to that of the par. It is denoted as - C = kPgas whereC  is the solubility of a gas at a fixed temperature in a particular solvent, k  is the Henry's law constant and Pgas  is the partial pressure of the gas The limitation of the law include - - The law only works if the molecules are at an equilibrium. - It does not work for high pressure gases. - It does not work during a CHEMICAL reaction between the solute and the solvent.

Explanation:Van't Hoff launched a factor called Van't Hoff factor to comprehend the notion of defects. This factor is used when CALCULATING the solvent's molar mass to solve the dissociation and connection issue.It is a measure of a solvent's impact on colligative properties such as osmotic pressure, relative vapor pressure reduction, elevation of the boiling point, and depression of the freezing point. It is the PROPORTION between the REAL particle concentration GENERATED when the material is dissolved and a substance concentration as calculated from its mass. It is REPRESENTED as - i = Normal molar mass/Abnormal molar mass

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When the DISSOCIATION of the salts can be taking place during the EXPERIMENTS related to the COLLIGATIVE properties. If you like the answer PLEASE make as a brainliest answer

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t of concentration that changes with temperature is (D) All of these.Units of concentration can be temperature dependent based on the FORMULA used for their calculation. When units of volume are included, these quantities are SUSCEPTIBLE to change when there is an alteration in temperature. As it increases, the volume expands, and as a result, the PHYSICAL quantities also vary due to this.

can be CLASSIFIED on the basis of the bonds that HOLD the atoms or molecules together. This approach categorizes SOLIDS as either MOLECULAR, COVALENT, ionic, or metallic.

tion:At the surface of vessel, Copper ATOMS REACT with the Oxygen atoms in the AIR FORMING copper-oxide.

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C2 Explanation:Because CARBON atom contain unpaired bonding molecules orbital.where as those molecules WHOSE electron are paired are CALLED diamagnetic. HOPE you LIKE it.

galium is PLACED in the 4th PERIOD and in the GROUP 13.the ATOMIC no of galium is 31

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Difference Between Compound and MIXTURE. ... The compound is the CHEMICAL combination of elements, BONDED together in specific PROPORTION. The mixture is the physical combination of substances, bonded together in any proportion. While the compound is a pure SUBSTANCE, the mixture is an impure substance.

Atom is the smallest,divisible particle of matter. It consists of three major sub-atomic particles. They are,ProtonsNeutronsElectronsProtons carry positive charge.Electrons carry negative charge.Neutrons carry no charge.Electrons REVOLVE around the nucleus in specific FIXED paths known as shells or orbits. The nucleus is composed of protons and neutrons.hope it HELPS and pls MARK as brainliest:)

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