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44701.

What is the colour of iron2 sulphate solution ​

Answer» TION:APPEARANCE WHITE crystals (ANHYDROUS) White-yellow crystals (MONOHYDRATE) Blue-green crystals (heptahydrate)Odor OdorlessDensity 3.65 g/cm3 (anhydrous) 3 g/cm3 (monohydrate) 2.15 g/cm3 (pentahydrate) 1.934 g/cm3 (hexahydrate) 1.895 g/cm3 (heptahydrate
44702.

78. 4 lit of so, (g) upon reaction with O₂(g) gives SO₂ (g). Calculate thefollowing:(1)Amount inSO₂ (g) need in the reaction(2)no.of moles of SO3 inthe reaction(3) No.ofentitiesof O2 used in the reaction​

Answer» TION:SORRY i didn't UNDERSTAND the question . even this question is not there in Google ALSO
44703.

Please Answer this question to this picture. Class 10th Chemistry

Answer»

desAnode: The ANODE is where the OXIDATION reaction takes PLACE. In other WORDS, this is where the metal loses ELECTRONS. ...2 Cathode: The cathode is where the reduction reaction takes place. This is where the metal electrode gains electrons.Mark as brainliest

44704.

Find the GMM of NH3​

Answer» TION:HOPE this ANSWER will HELP UHH....
44705.

Air at a pressure of 50 bar and a volume 0.2 m3 is expanded at constant pressure until the volume is doubled. It is then expanded according to PV1.3=constant, until the volume is 0.8 m3. Calculate the work done on each process. please give me a fast reply with step by step process​

Answer» TION:AEIOU ₹????.............
44706.

What is the required volume of .4 (M) solution to prepare 60 ml .2 (M) solutio

Answer»

tion:30 ML can be the ANSWER.

44707.

Write the common name of ch3-ch=ch-ch2-br

Answer»

I didn't UNDERSTAND the QUESTION. Can you PLEASE ELABORATE

44708.

Write a balanced chemical equationfor thermal decomposition of lead nitrate

Answer»

)2 «→» 2PbO + 4NO2 + O2please mark my answer as BRAINLIEST... PLEASE please

44709.

19. निम्नलिखित वर्णमाला में बाईं ओर से पन्द्रहवें और दाई ओर से दसवें अक्षर के ठीक बीच का अक्षर कौन-सा है?ABCDEFGHIJKLMNOPQRSTUVWXYZ​

Answer»

O is the ANSWEREXPLANATION:HOPE it's HELPS you please MARK me as Brainliest and FOLLOW me

44710.

.C+O2 → CO2, Consider 3g of C reacts with 16g of O2 then find Limiting reagent ​

Answer»

C(s) + O  2 ​   →CO  2 ​   (G) No. of MOLES of carbon =  12 36 ​   =3 moles No. of moles of oxygen =  32 32 ​   =1 moles So, 2 moles of carbon is left and oxygen will be completed. So, O  2 ​    is limiting reagent.Explanation:

44711.

Chlorine has the Highest Electron Affinity in the periodic table (Even more than Fluorine). Then how Fluorine is the most Electronegative?

Answer»

n affinity of chlorine is HIGHER than that of flourine. This results due to the small size of fluorine making GREATER electron-electron repulsion than how it does in chlorine. This in turn, MAKES it for electron affinity of chlorine being higher than that of flourine.Hope it HELPS you!!

44712.

Prepare 200 ml (m/20) aq solution of na2co3 (with explaination please)​

Answer» MOLARITY = no. Of moles of solute/ litre of solution SINCE 100ML = 0.1 L Therefore , 0.5 = no. of moles of solute/ 0.1 Hence,No. of moles of solute = 0.05 moles. But , no. Of moles = mass of substance/ molecular mass of substance So , 0.05 = mass of substance/ 106 = 5.3 Hence , mass or amount of sodium carbonate in litre of solution is 5.3 Calculation of molecular weight of sodium carbonate , = 23 *2 + 12*1 + 16 *3= 106.
44713.

Calculate the number of GMMC6 H12 O6​

Answer»

G.M.M of C₆H₁₂O₆= GIVEN in ATTACHMENT

44714.

Electron dot structure of C2H8​

Answer»

Lewis STRUCTURES (also known as Lewis dot structures or electron dot structures) are diagrams that represent the valence electrons of atoms within a molecule. These Lewis symbols and Lewis structures help visualize the valence electrons of atoms and MOLECULES, whether they exist as lone PAIRS or within bonds.I HOPE IT HELP YOU..

44715.

IUPAC name of compound..​

Answer»

sssssooooooorrrryyyyy you BRO

44716.

Why colloidal solution is a heterogeneous mixture ?​

Answer»

A colloid is a heterogeneous MIXTURE in which the dispersed PARTICLES are INTERMEDIATE in size between those of a solution and a SUSPENSION. ... Because the dispersed particles of a colloid are not as large as those of a suspension, they do not settle out UPON standingHOPE IT WILL HELP U!!!!

44717.

The element x has 1 electron in the s subshell in 3rd shell a)write the compleate electronic configuration of x b)find out the atomic number of this element c) if x combains with another element y of valncy 2,write the chemical formula of compund formed

Answer»

The E.C WOULD be 1s2 2s2 2P6 3s1atomic no. : 2 + 2 + 6 + 1  11It is NaExplanation:

44718.

The chemical name of baking soda is sodium hydrogen carbonate or sodium bicarbonate. True or false

Answer» TRUE EXPLANATION:MARK it as BRAINLIST
44719.

4. Give one word.a. Spun thread used for knitting, weaving, or sewing​

Answer» YARN is ANSWER hope it is correct PLEASE MARK me as a brainlist
44720.

What is hydride shifting???????​

Answer»

A 1,2-hydride SHIFT is a carbocation rearrangement in which a hydrogen ATOM in a carbocation migrates to the carbon atom bearing the formal CHARGE of +1 (carbon 2) from an ADJACENT carbon (carbon 1).

44721.

How many grams of BaCl2 are needed to prepare 100cm³ of a 0.250M Bacl2 ? please answer this... ​

Answer»

How MANY GRAMS of BARIUM chloride (BACL2) are needed to prepare 100cm3 of 0.250 M BaCl2 of solution? 5.2 GRAM .

44722.

Plzz need a full explanation ​

Answer»

ffffffffffdkswkwksksksowowosoeos

44723.

What is the colour of iron sulphate solution ​

Answer» GREEN..............
44724.

4. Give one word. a. Spun thread used for knitting, weaving, or sewing Come give me answer fast!!​

Answer»

YARNThis is the spun tread USED in VARIOUS useful things to be DONE RELATED to fabric.

44725.

an organic compound was found to contain the following constituents:C=33%,H=4.7%,N=130%,Cl=33.4% . Determine the Empirical formula of the compound. Hint: Calculate the percentage of oxygen since the sum of percentages of elements is not 100. The percentage of oxygen=15.7% .​

Answer»

Answer =C3H5N9ClOExplanation:   HERE'S YOUR ANSWERStep -1 .. Percentage of oxygen=100--(33+4.7+13.2+33.4) = 100--84.3 = 15.7                 Step -2 .. Emperical FORMULA of the organic compound.Element   Percentage   AM    GAM      Atomic RATIO  SimpleratioC                  33.0                     12      33.0÷12      2.75÷0.94              3                                                           =2.75          =2.93H                   4.7                       1        4.7÷1           4.70÷0.94              5                                                                                                                                                                                                    =4.70           =5.0N                   130                    14       130÷14          9.28÷0.94            9                                                            =9.28           =9.87Cl                  33.4                  35.5    33.4÷35.5     0.94÷0.94           1                                                             =0.94          =1O                   15.7                   16        15.7÷16         0.98÷0.94           1                                                             =0.98          =1.04EMPERICAL FORMULA=C3H5N9ClOHOPE YOU LIKED THE ANSWERPLZ MARK ME AS BRAINLIST................

44726.

What is the ratio of Co and H2 in water gas?​

Answer»

ratio 2:1The CARBONMONOXIDE and hydrogen is found in WATER GAS in ratio 2:1. Explanation: The water gas is FORMED by passing the fuel to the red HOT carbon fuel such as coke. Water gas is a mixture of carbon monoxide and hydrogen produced from synthesis gas.

44727.

What is the molarity of a solution of NaoH containing 18.25 of NaoH in 200cm³ of water? ​

Answer» ANSWER:The MOLARITY of the SOLUTION is 2.28 M
44728.

What is the colour of copper sulphate solution ​

Answer»

II) sulfate, also known as COPPER SULPHATE, are the inorganic compounds with the CHEMICAL formula CUSO4(H2O)x, where x can range from 0 to 5. The pentahydrate (x = 5) is the most common form.hope it helps you

44729.

280 mmol of a perfect gas occupies 12.7L at 310K. Calculate the work done when gas expands isothermally against a constant external pressure of 0.25atm​

Answer»

if the answer is wrong please MAKE me BRILLIANT, it is ZERO

44730.

GOOD EVENING GUYS. CLASS X (CHEMISTRY)... ⚠️⚠️SPAMMERS STAY AWAY⚠️⚠️​

Answer» UNSATURATED HYDROCARBON, thus will undergo ADDITION REACTIONS.
44731.

Calculate number of molecules in 50g of copper​

Answer»

here's your answer.Explanation:given  mass =50 gmolecular mass of Cu=63gGiven molecules/Avogadro no.=Given mass /MOLECULAR massLet the no. of molecules be= xx÷6.022*10 power23 == 50÷63x ==50÷63** 6.022*10 power 23X ==0.79*6.022*10 power23x ==4.757**10 power23 molecules.......hope it helps youplz mark me as BRAINLIEST.....

44732.

2Na+3H2O=2NaOH+H2 Underline the incorrectly balanced compound in each equation and rewrite the correct equation .

Answer»

3 will not COME near H2O, 2 should comekINDLY MARK ME AS BRAINLIEST...PLZZZHOPE U LIKE MY ANSWER..

44733.

How many electons in an atom have the follOwing quantum numbers .n=2,I=0

Answer»

Since each orbital can HOLD a MAXIMUM of two electrons, the number of electrons that can share the two quantum number n=3 and ml=−2 will be equal to 2 , each having OPPOSITE spinkINDLY MARK ME AS BRAINLIEST...PLZZZHOPE U LIKE MY ANSWER..

44734.

Give answers with steps please. ​

Answer» SEARCH in DOUBTNUT APP
44735.

Information about acid rain in odisha​

Answer» TION:hope it's HELPS you please MARK me as Brainliest and FOLLOW me
44736.

Gain of electrons means​

Answer»

the PROCESS in which SUBTANCE LOSES an elecyon is CALLED ELECTRON

44737.

Guys plz answer it fast I will mark it as brainlist answer the first and correct answer. no spam otherwise I will report it. fast ​

Answer» CDAA MARK ME AS A BRAINLIEST
44738.

at 20c vapour pressure of pure benzene and toluene is 75mm of hg and 25mm of hg .if a solution is prepared by mixing 23.4 g benzene and 64.4g of toulene then what will be the partial pressure of benzene and toulene respectively.​

Answer»

0.59. Explanation: According to Raoult's LAW for liquid mixture. From Dalton's law of partial PRESSURE ...KINDLY MARK me as brainliest..plzzhope U like my answer..

44739.

Al properties. 15. A man went door to door posing as a goldsmith. He promised to bring back theglitter of old and dull gold ornaments. An unsuspecting lady gave a set of goldbangles to him which he dipped in a particular solution. The bangles sparkledlike new but their weight was reduced drastically. The lady was upset but after afutile argument the man beat a hasty retreat. Can you play the detective to findout the nature of the solution he had used?​

Answer»

tion:The man had used the solution of aqua-regia is a mixture of nitric acid and hydrochloric acid, optimally in a MOLAR ratio of 1:3. Aqua regia is a yellow-orange fuming liquid. Aqua regia was so NAMED because it can dissolve the noble metals gold and platinum. After dipping the gold ornaments in it the OUTER layer of gold gets DISSOLVED and the inner shiny layer appears.

44740.

Explain the branches of chemistry​

Answer» TION:The five PRIMARY branches of chemistry are physical chemistry, organic chemistry, INORGANIC chemistry, ANALYTICAL chemistry, and BIOCHEMISTRY.
44741.

What are cathode rays​

Answer»

rays are streams of electrons observed in discharge tubes. If an EVACUATED glass tube is equipped with TWO ELECTRODES and a VOLTAGE is applied, glass behind the positive electrode is observed to glow, DUE to electrons emitted from the cathode.

44742.

+ BH, 504 + 2 ALCOH)2BHS04 + 2 fe (OH)₂H₂SO4 NH4 OHH₂SO4LionH2SO4 + Ba(OH)2++​

Answer»

ar MUJHE ie question SAMAJH me nahi AA RHA hai SORRY

44743.

In reaction, aP4 + bHNO3 + cH3PO4 + dNO2 + eH2O, the coefficients are(A) b = 16, d = 18(B) c= 3, a = 2(C) a = 1, b = 24(D) b = 20, c = 4plzz show how to solve step by step​

Answer»

I THINK the QUESTION is not RIGHT as there is no arrow in this EQUATIONI will answer it but first write right answerBtw the answer is (C)

44744.

(a) What is meant by quantisation of energy? (b) What is the significance of ψ^{2}? (c) What is meant by emission spectra? First to answer is brainliest :)

Answer»

a)Energy is quantized in some systems, meaning that the system can have only certain energies and not a CONTINUUM of energies, unlike the CLASSICAL case. This would be like having only certain speeds at which a car can travel because its kinetic energy can have only certain values.b)In addition to the importance of Ψ, its square Ψ2 also has enormous significance in chemistry. Ψ2 is the PROBABILITY density. It tells us where the electron is most likely to be found in the space around the nucleus.c)emission spectrum. The distribution of electromagnetic radiation released by a substance whose ATOMS have been excited by heat or radiation. A spectroscope can be used to DETERMINE which frequencies have been emitted by a substance. Kindly mark me as brainliest...plzzzi beg youhope u like my answer..

44745.

Why does the wax not freeze at top the candle

Answer»

wax do not freeze on TOP of the candle because the HEAT on top of the candle MAKES it MELT and as we know heat makes solid meltKindly mark me as BRAINLIEST..plzzhope u like my answer..

44746.

a mixture of gases of 2 moles of nitrogen 3 moles of carbon monoxide and 4 moles of of carbon dioxide in 2.5l in a cylinder at 27 degree celsius. find the partial pressure of individual gases

Answer» PE I HELP you PLZ FOLLOW me
44747.

The e/m value of He+1 is in comparison to e/m value of electron is??​

Answer»

e/m, the ratio of the charge of an electron to the mass of an electron. The CURRENTLY ACCEPTED value for e/m is 1.758820 × 1011 C/kg.Kindly mark me as brainliest...plzzzhope U LIKE my answer...

44748.

What is the molarity of a solution of NaoH in 200cm³ of water? please answer this question quickly ​

Answer»

If X GRAMS of NAOH is GIVEN then MOLARITY is given byMolarity =               = M

44749.

Write four postulates of Planck's quantum theory.​

Answer»

energy=hc/lambdalight TRAVELS in the FORM of photonsfrequency is no of CYCLES per secondwave NUMBER is reciprocal of wavelength

44750.

Loss of electrons means​

Answer»

Oxidation is the loss of ELECTRONS or an increase in the oxidation state of an ATOM, an ion, or of CERTAIN ATOMS in a molecule. Reduction is the gain of electrons or a decrease in the oxidation state of an atom, an ion, or of certain atoms in a molecule.Explanation:Hope it helps