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51401.

Bohr's model can explain 1) the spectrum of oxygen atom 2) a spectrum of an atom or ion containing one electron only 3) the spectrum of hydrogen molecule 4) the solar spectrum​ please tell me it's urgent pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answer» BOHR's theory can apply only one electron, similar to that PRESENT in the hydrogen atom. Hence, Bohr's model explains the SPECTRUM of an atom or ion CONTAINING one electron only. So, the CORRECT option is B. Note: Bohr's model applied only hydrogen-like ionsExplanation:this should help you
51402.

Calculate the internal energy change for a system which absorb 701 J heat and work done is 349J.​

Answer»
51403.

The process carried out to convert succinic acid to succinic anhydride is​

Answer»

duction of succinic anhydride from succinic acid is known per se. ... 2011, 13, 892 succinic acid is formed in a homogeneous-catalyzed PROCESS with the catalyst as a high BOILER; the PURIFICATION is carried out by precipitation of the anhydride and filtration of the reaction MIXTURE.

51404.

Tomorrow I have test give the correct answer . if given wrong answer I report you. mind it​

Answer»

Yes, one can find the diameter of thin wire using a ruler.For this you need, 1) A ruler2)A pencil 3)The wire.Now follow the steps :- Take the wire and bind it around the pencil.Count the NUMBER of turns in the given length, that is, 2m.Compress the wire and measure it against the SCALE. See the length in the ruler and divide the length by the number of turns to get the thickness of the wire.But since the diameter of a thin wire is very small and cannot be measured in CM.  The appropriate measurement instrument to use is a micrometer SCREW gauge.  It is an instrument used for measuring ACCURATELY the diameter of a thin wire or the thickness of a metal sheet.  It has its main scale reading in mm and the highest reading being 0.5mm.  It is further divided into hundredths of millimeters to accommodate a variety of smaller readings.

51405.

which of the following aqueous solution will have highest boiling point? a) 0.1M urea b) 30g glucose per dm³ c) 3.42 g of sucrose in 100 ml d) 0.2 M glucose​

Answer»

the ANSWER isExplanation:0.2m \: of \: GLUCOSE \:0.2mofglucose

51406.

What is molality. define ​

Answer»

DescriptionDescriptionMolality is a measure of the NUMBER of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with the definition of molarity which is BASED on a SPECIFIED VOLUME of solution. A commonly USED unit for molality in chemistry is mol/kg.

51407.

Assertion :No of molesof H2 in 0.224 litre of hydrogen is0.01 mole Reason:22.4 litresof H2 at SRP contain 6.022x10²³moles​

Answer»

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51408.

What is normality. define ​

Answer»

ty is a unit of concentration of a chemical solution EXPRESSED as GRAM equivalent weight of solute per liter of solution. A defined EQUIVALENCE factor MUST be used to express concentration. Common units of normality include N, eq/L, or meq/L.

51409.

Which one of the following solvents is polar? (a) benzene (b) ether (c) water (d) petrol​

Answer»

(C) waterExplanation:WATER is a solvent for polar molecules and the most common solvent used by living THINGS; all the ions and proteins in a cell are dissolved in water WITHIN the cell.

51410.

Process of corrosion enhanced by, ( CO4 L1) * A. Air and MoistureB. Electrolytes in waterC .Gases like CO2 & SO2D.All of above​

Answer»

d.all of aboveExplanation:HOPE it HELPS YOUPLEASE MARK me as BRAINLIST

51411.

A student adds lead to a test tube containing copper chloride solution. The student observes that the colour of the solution in the test tube changes. What explains the change in the colour of the solution? 1-A double displacement reaction takes place as copper dissociates from sulphate and lead combines with sulphate in the solution. 2-A displacement reaction takes place as copper displaces lead from the solution. 3-A displacement reaction takes place as lead displaces copper from the solution. 4-A displacement reaction takes place as sulphate replaces copper from the solution.

Answer»

tion:The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to FORM cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori REARED in captivity (SERICULTURE).

51412.

Give the IUPAC name of compound given below​

Answer»

The correct IUPAC NAME of the compound is - chlorohexan - 2 - ol.MARK ME AS BRAINLIEST ANSWER

51413.

How are the following interhalogen compounds prepared CIF5 ​

Answer»

How are Interhalogen compounds prepared?PREPARATION of Interhalogen CompoundsThe halogen atoms REACT to FORM an interhalogen compound. ONE example includes the reaction when a volume of chlorine reacts with an equal volume of fluorine at 473K. ... In other cases, a halogen atom acts with another lower interhalogen to form an interhalogen compound.

51414.

In which chemical reaction does carbon exhibit variation of oxidation state from -4 to +4 ? Write balanced chemical reaction.​

Answer»

are CHEMICAL SUBSTANCES USED in the PREVENTION and TREATMENT of diseases.

51415.

What is the difference between the hydride compounds of group 14 and 15 elements on the basis of lewis structure?​

Answer»

tion:B is group 13 element. It forms hydride B B is group 13 element. It forms hydride B 2B is group 13 element. It forms hydride B 2B is group 13 element. It forms hydride B 2 H B is group 13 element. It forms hydride B 2 H 6B is group 13 element. It forms hydride B 2 H 6B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The CENTRAL B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. HENCE, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3 which is electron rich. The central N atom has a lone pair of electrons that can be donated to a suitable Lewis acid. Hence, nitrogen forms hydride which is Lewis base.B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3 which is electron rich. The central N atom has a lone pair of electrons that can be donated to a suitable Lewis acid. Hence, nitrogen forms hydride which is Lewis base.Note: Lewis acid is electron pair acceptor and Lewis base is electron pair donor.

51416.

15 m² mol-'is equal to

Answer»

our QUESTIONS PROPERLY

51417.

Give reasons :-1. Potash alum is an example of what category of salt​

Answer» B EXPLANATION:sotsueHsUea adyirJd-₹%%[EMAIL PROTECTED]¡´÷÷8#? %⚠️⚠️‍♂️hsjdJdJrIrIrJrrOakIrKrairsoraorakrKfKIskfzkfzkzkKrakrzirzjrJrrR
51418.

Pls say me these answers fast ​

Answer» L get the PROPER answer from other online you KNOW what IM TRYING..please mark me as brainlist
51419.

Me centre , chang yang left and right side diamong sie they always tease me and careme​

Answer»

ingan-ui salm-eun jayeongwa johwaleul ilubnida. kaviṉmiku achim-eneun maehogjeog-in jeonyeog-e choseungdal-i usehabnida.Explanation:U all are CUTE LIKE CATS

51420.

:) Predict the product of the following reaction : CH3 CH2 C = N + C6 H5 MgCl Dry ether, H3 0+ Р​

Answer»

mxlsls.mals smmdlx kuttta

51421.

The latent heat of fusion of ice is 336J/gm.Calculate the molar entropy of fusion of ice at normal melting point.

Answer»

to find the molar entropy of fusion of ice at normal MELTING POINT. if latent heat of fusion of ice is 336 J/g solution : latent heat of fusion of ice = 336 J/g molar mass of ice = 18g/mol [ ice is just water in solid form and we know, molar mass of water is 18g/mol so molar mass of ice = 18 g/mol ] now, molar latent heat of fusion of ice = 336 × 18 J/mol = 6048 J/mol normal melting point of ice, T = 0°C = 273 K now molar entropy of fusion of ice = molar latent heat of fusion of ice/normal melting point of ice = (6048 J/mol)/273 K= 22.154 J/mol/K THEREFORE the molar entropy of fusion of ice at normal melting point is 22.154 J/mol/K.also read similar questions : why latent heat of fusion of ice is less than latent heat of vaporisation of ice ? brainly.in/question/14344707Latent heart of fusion of ice is 0.333kJ/g. The increase in entropy when 1mole water MELTS at 0°C will be? brainly.in/question/1936200

51422.

Q4. Which of the following does not make sense? * (a) 2s (b) 3f (c) 2p (d) 1s ​

Answer» 3F does not MAKE sense.is it HELPFUL.
51423.

The latent heat of fusion is 336J/gm. Calculate the molar entropy of fusion of ice at normal melting point .

Answer»

It MEANS 1 G at 0°C ABSORBS 360J of heat energy to convert into WATER at 0° C

51424.

How many alpha and beta particles are emitted during the transformation of 90Th232 to 80Hg200 2 points​

Answer»

ieufi to the BRAINLIEST EXPLANATION:kajei amstions or NEED ANYTHING further I am a HUNTER

51425.

8) prepared sodium bicarbonat form sodium carbonate? answer​

Answer» SODIUM bicarbonate is produced industrially from sodium carbonate: NA2CO3 + CO2 + H2O → 2 NAHCO
51426.

Explain the molecular pattern presented by Neil's Bohr​

Answer»

tion: In atomic physics, the BOHR model depicts an atom as a small, positively charged nucleus surrounded by electrons. These electrons travel in CIRCULAR ORBITS AROUND the nucleus—similar in structure to the solar system, except electrostatic forces rather than gravity PROVIDE attraction.

51427.

The oxygen molecule is paramagnetic. It can be explained

Answer»

As molecules containing unpaired electrons are STRONGLY attracted by magnetic field, HENCE OXYGEN has paramagnetic nature. Unpaired electrons spin in the same direction as each other which INCREASES magnetic field effect.

51428.

Solve this reaction..zncl²+cu​

Answer» REACTION does not OCCUR
51429.

Prepare phenol from aryl halide ​

Answer»

method, benzene sulfonic ACID is reacted with aqueous sodium hydroxide. The RESULTING salt is MIXED with solid sodium hydroxide and reacted at a high TEMPERATURE. The product of this reaction is sodium phenoxide, which is acidified with aqueous acid to make phenol.

51430.

Please answer fastASAPConvert the values °C = Celsius °F= Fahrenheit K= Kelvin​

Answer» TION:C DEGREE to KELVIN = degree + 273
51431.

The Heisenberg Principle states that: *in​

Answer» TION:jejejejeneb वbwhejejeje
51432.

What is bio-indication?​

Answer»

Bioindicators include biological PROCESSES, SPECIES, or COMMUNITIES and are used to assess the quality of the environment and how it CHANGES over time. ... Bioindicator species effectively indicate the condition of the environment because of their moderate tolerance to environmental variability (Figure 1).Explanation:Hope that helps you

51433.

C, F,Cl,Be (increasing order of electronegativity)please help me out​

Answer»

I'm SORRY I don't I'm sorry PLEASE

51434.

Which atomic orbital is spherical in shape?​

Answer» 1S orbitalhope it HELPS :)
51435.

Q.56) How many of the following crystal defects can account for cationic vacancies in NaCl ? (assume that all anionic sites are occupied) i) Frenkel defect ii) Schottky defect iii) Impurity defect due to crystallisation of molten NaCl containing a little amount of SrCl. iv) Non-stoichiometric defect arising when crystals of NaCl are heated in an atmosphere of sodium vapour. 1) 1 2) 2 3) 3 4) 4

Answer» 3). 3 DEFECTS are seenExplanation:Those are 2,3,4
51436.

Name four gaseous disinfectants​

Answer»

The most COMMON GASES USED for sterilization include ETHYLENE oxide (EO), ozone, mixed oxides of nitrogen, and CHLORINE dioxideExplanation:#queen♥️

51437.

The Heisenberg principle states that​

Answer»

At the foundation of quantum mechanics is the Heisenberg uncertainty principle. Simply put, the principle states that there is a fundamental limit to what ONE can know about a quantum system. For EXAMPLE, the more PRECISELY one knows a PARTICLE's position, the less one can know about its momentum, and vice versa.Explanation:

51438.

Arrange the given elements in decreasing order of atomic volume Mg, Si, Al, P.​

Answer»

P> SI> AL> MgExplanation:hope it will HELP you

51439.

Give answer of the above​

Answer»

1- paint3-to ENLARGE letters3-to fill background FULL of the selected COLOUR

51440.

How many moles of carbon are present in 60g of glucose?​

Answer»

60/12=5 MOLES HOPE it HELPS you

51441.

Which of the following has a direct effect on the kinetic energy of particles?

Answer»

tion:Ans) The temperature has a direct EFFECT on the KE of PARTICLES because KE is directly PROPORTIONAL to Temperature

51442.

Define acceleration. Write the formula for acceleration. A train starting from railway station attains a speed of 45 m/s in 2 minute. Find its acceleration​

Answer»

"Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), REPRESENTED by the equation a = Δv/Δt. This allows you to measure how FAST velocity changes in meters per second squared (m/s^2). Acceleration is also a VECTOR quantity, so it includes both magnitude and direction."

51443.

The correct ground state electronic configuration of chromium atom (Z = 24) is ....​

Answer» PLEASE MARK me as BRAINLIEST please
51444.

The correct ground state electronic configuration of chromin atom (Z = 24) is*​

Answer»

I will be there on the 11TH and will be ABLE to ATTEND the MEETING on the 11th

51445.

5g of pure CaCO3 if treated with 5g of HCLto produce CaCL2, H2O and CO2 find which one is limiting reactant and why?

Answer»

nj9KMoxkvyExplanation:wiwhsczhiejs9h3b0abs8iw

51446.

8. Write the formulae of the following compounds. (a) Iron(II) sulphate (b) Iron(III) sulphate (c) Ammonium hydroxide (d) Tin(II) chloride (e) Mercury(II) sulphate (f) Aluminium phosphate (g) Potassium sulphate (h) Calcium hydrogencarbonate (i)Sodium nitrate (j) Sodium hydrogensulphate​

Answer» HOPE it HELPS..THANKS..
51447.

. The Heisenberg Principle states that:​

Answer»

At the foundation of QUANTUM mechanics is the HEISENBERG uncertainty PRINCIPLE. Simply put, the principle states that there is a fundamental limit to what one can know about a quantum system. For example, the more precisely one knows a PARTICLE's position, the less one can know about its momentum, and vice versa.

51448.

Three strong acids and their formula.​

Answer»

HCL (Hydrochloric ACID) 2. H2SO4 (Sulphuric acid) 3. HNO3 (Nitric Acid) here is your answerhope it will help you

51449.

Write down complete procedure of the experiment of volumetric analysis.​

Answer»

Volumetric analysis, any method of QUANTITATIVE CHEMICAL analysis in which the amount of a substance is determined by MEASURING the volume that it occupies or, in BROADER USAGE, the volume of a second substance that combines with the first in known proportions, more correctly called titrimetric analysis.

51450.

Which element is used to vulcanize rubber ? (CO3 L1) * A. N B. P C. K D. S​

Answer»

VULCANIZATION. Vulcanization GIVES rubber its CHARACTERISTIC elastic quality. This process is carried out by mixing the latex with sulphur (other VULCANIZING AGENTS such as selenium and tellurium are occasionally used but sulphur is the most common) and heating it in one of two ways.Explanation:hope it was HELP fullmark as BRAINLIEST answer