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According to nomenclature, 'Non' is the root word depicting 9 carbon atoms in the structure and 'ane' at the end DEPICTS the compound to be alkane.We KNOW that, General Formula of Alkane = Cₙ H₂ₙ₊₂Here 'n' refers to number of Carbon atomsAccording to QUESTION, Nonane has 9 carbon atoms. Hence n = 9Substituting in the formula we get,C₉ H₂₍₉₎₊₂ = C₉ H₂₀Hence Formula of Alkane is C₉H₂₀Hence it is covered by 20 HYDROGEN atoms.Hence, Option d is correct.Thanks !!

exactly PROVED that CARBON is TETRAVALENT. It has 4 electrons in its valence shell and its valency was named as tetravalency. tetravalent is a FEATURE of carbon atom.hope it helps ^_^mark as brainliest if helpful

-point ELEVATION constant..... It is aconstant that is EQUAL to the change in the boiling point for a 1-molal SOLUTION of a nonvolatile molecular SOLUTE. For water, the VALUE of is 0.512°C/mhope you understand ❤️❤️❤️

etically EQUIVALENT resonance structures exist for the oxalate dianion .  We have to CALCULATE the number of electrons in π bonds by using  formula : P = 6n + 2 – V Where, n = 6 as  C2O4-2  consists of SIX ATOMS. V = (4 + 6 + 6 + 4 + 6 + 6) – ( - 2) = 34   P = 6n + 2 – V = 6 x 6 + 2 – 34 = 4

ATORY TESTS Confirmatory tests should be performed on separate solutions of some of your ions, in order to see what these tests look like before using them on an UNKNOWN. Generally a confirmatory test is used only after other reactions have been used to isolate the ion. When working with stock solutions of an ion, dilute 1 drop with 9 drops of water to simulate the concentration that would exist in an unknown. In a mixture or a solution obtained from an unknown or known mixture, the dilution is not necessary since the ions have already been diluted COMPARED to the stock solutions. In the tests described here, it is assumed that 10 drops of solution will be used. If you change the amount of solution of the ion being tested, you must also adjust the amounts of the REAGENTS to be added.Tests Based on Hydrogen SulfideAntimony, Sb3+Cadmium, Cd2+Mercury(II), Hg2+Tests Based on Other ReagentsAluminum, Al3+Ammonium, NH4+Bismuth, Bi3+Calcium, Ca2+Chromium, Cr3+Cobalt, Co2+Copper, Cu2+Iron, Fe3+Magnesium, Mg2+Manganese, Mn2+Mercury(I), Hg22+Mercury(II), Hg2+Nickel, Ni2+Silver, Ag+Strontium, Sr2+Tin, Sn2+Zinc, Zn2+

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e cannot be both chemical and PHYSICAL but it can OCCUR simultaneously in nature. For example, burning of a candle, it will burn down the wax changing the physical state of the candle and the combustion process will FALL into the category of chemical CHANGE. Another example is digestion as physical FOOD is chewed which change the shape of it and the whole process is a chemical cycle.

.COMMONLY USED antacids are SODIUM bicarbonate (NaHCO3) and Milk of magnesia@[email protected]^_^

ng to PAULING, if the DIFFERENCE in the electronegativity between the two atoms forming a bond is 1-9 then the bond has equal covalent and ionic character. how is it is the difference become more than 1-9 the ionic character INCREASES while the polar covalent character decreases.for example the bond between SODIUM and fluorine is completely ionic because the electronegativity difference between sodium(0,9) and fluorine (4,0) atoms 3,1.on the other hand the bond between carbon and chlorine is MAINLY covalent with very little ionic character because the electronegativity difference in carbon (2,0) and chlorine (3,0) atoms is (0,5).hope this answer will help you ...!!!

t bond strength is roughly CORRELATED with bond ORDER because higher order bonds INVOLVE a great amount of electron density between the bonded atoms.think of electron density as the Glue that holds the atoms together.in short because there is more glow between the atoms of double bond it takes more energy to pull apart to form separate atoms COMPARED to a single bond involving the same elements.that's why double bond is more STRONGER than single bond.hope this answer helps you..!!!

silver articles react with HYDROGEN sulphide GAS PRESENT in air and a thin layer of silver sulphide form due to which silver articles turn black.Copper items turn green. because copper react with CARBON dioxide due to which a green coloured coating of basic copper carbonate form.

& NickelTrasmission ELEMENTS LIKE FE, Co, NI

oseley who INVENTED MODERN PERIODIC table

s a simple trick...if number of lone PAIRS are even=dia magnetic...if number of lone pairs are odd=para magnetic..half filled ORBITALS are para magnetic...completely filled orbitals are dia magnetic...please mark as brainliest..HAPPY REPUBLIC day!!!

of the hybridisation....each carbon ATOM UNDERGOES hybridisation with THREE other carbon atoms and MAKES sigma bond.fourth electron forms pi bond.in case of diamond it undergoes hybridisationplease mark as BRAINLIEST...

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s the MASS no.2. 15 is the ATOMIC no.3. 2,8,5 is the ELECTRONIC CONFIGURATION

bwhats your QUESTION

allurgy is a branch of EXTRACTIVE metallurgy. It consists of the thermal treatment of MINERALS and METALLURGICAL ores and concentrates to BRING about physical and CHEMICAL transformations in the materials to enable recovery of valuable metals

mate!!!here is ur answer...⬇️⬇️⬇️a triatomic ELEMENT is ozone.(O3)A POLYATOMIC element is sulphur(S8), CARBON(C4)hope it HELPS u....❤❤❤❤

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...NACL has POLYATOMIC ION as it is IONIC COMPOUND

be an nonmetalas nonmetalsoxides are in ACIDIC in NATURE

the FREE MOVEMENT of ELECTRONS in the SOLUTION

al is burnt it emits LOTS of smoke which contains high AMOUNT of carbon monoxide . So when you sleep in a closed room with burning coal the air you inhale is carbon monoxide which is obviously not good for humans . After sitting in that room ( closed room) for some time you will start feeling dizzy may cause HEADACHE ALSO , sleeping in that room is extremely dangerous as there are MANY cases where people sleeping in closed room with burning coal have died due to inhalation of carbon monoxide .Hence it is not advisable to sleep with burning coal in closed room

end..Here is your answer..FERROUS SULPHATE is GREEN in COLOUR.After heating, the colour changes from light green to white. On further heating, the white substance changes to DARK brown solid.HOPE that it will help you

s are the NATURAL materials in which the metals or their compounds are FOUND in earth and ORES are those MINERALS from which metals can be extracted Convieniently and profitablyhope it is hlpful...

a hydrogen atom has only ONE electron, it contains a large NUMBER of shells, so when this single electron jumps from one shell to another, a photon is emitted, and the energy difference of the shells causes different WAVELENGTHS to be released... HENCE, mono-electronic hydrogen has many SPECTRAL lines.see whether it is helpful or not

t Concentrations. Raising the concentrations of reactants makes the reaction happen at a FASTER rate. ... SURFACE Area. ... PRESSURE. ... TEMPERATURE. ... Presence or Absence of a Catalyst. ... NATURE of the Reactants.see whether is helpful to you

s Made from Petrochemicals include plastics, SOAPS, DETERGENTS, solvents (such as paint thinner), PAINTS, drugs, FERTILIZER, pesticides, explosives, synthetic fibers and rubbers, and flooring and insulating materials.see WHETHER it is helpful to you

he white powder is plaster of PARIS(calcium sulphate hemi hydrate)with the formula CASO4. 1/2H2O..when this powder is mixed with water, it gains 1 and a half molecules of water and forms a hard SOLID mass called gypsum [CaSO4. 2H2O].Hope this HELPS you...

ction TAKES PLACE in silver and copper carasponding OXIDASE are FORMED

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e is you answer...K2Cr2O7 + 2 NaOH = K2CRO4 + NA2CRO4 + H2Oi hope it is CLEAR to you.plss BRAINLIEST my answer...

a SHORT list of MAIN properties:They form crystals. ...They have higher ENTHALPIES of fusion and VAPORIZATION than molecular compounds.They are hard.They are brittle.They have high melting points and also high boiling points.They conduct electricity but only when they are DISSOLVED in water.