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In DNA and RNA, the phosphodiester bond is the linkage between the 3' carbon atom of one SUGAR molecule and the 5' carbon atom of another, deoxyribose in DNA and ribose in RNA. STRONG covalent BONDS form between the phosphate GROUP and two 5-carbon ring carbohydrates (pentoses) over two ester bonds.

... WOOD is BAD conductorr of ELECTRICITY

Boilers are not USED to soften water. Hard water causes a higher risk of lime scale deposit in household water system. Due to this lime scale build up, pipes are BLOCKED and the efficiency of hot boilers and TANKS is REDUCED . Due to this soft water is used in such system.

These Are Some EXAMPLES Of ACRYLIC Fibres:
1.) Lastrile.

2.) Nytril.

3) MODACRYLIC.

We can't ADD WATER in acid normal because the water will get vapourized and process can't be undertaken so we add acid in water to DILUTE it not water in acid

All things are BECOMING EXPENSIVE but SALARY is not increasing ACCORDINGLY

The main differences between organicand in ORGANIC ACIDS . INORGANIC acidshave no carbon while organic acids do. ... Organic acids most of them have a BIOLOGICAL origin, whereas inorganic acids do not their ORGIN are frommineral or inorganiccompounds.

Because when the PARTICLES of air TOUCH our body they take heat ENERGY from the body and evaporat this CAUSE cooling

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A reaction in which both oxidation and reduction takes place simultaneously is called REDOX reaction.

Ex-
2H2S + SO2 -----> 3S + 2H2O

Here,
1. 2H2S oxidised to form 3S
2. SO2 REDUCED to form H2O


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We see water droplets on the OUTER SURFACE of a glass tumbler containing ice cold water. This is because when the water particles in the surroundings come in contact to the glass LOOSES energy and get converted to liquid which is seen as water droplets on the glass tumbler.

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Which CLASS are you in

RATE OF EVAPORATION OF LIQUIDS ON THE BASIS OF NATURE OF LIQUIDS:

1

. Concentration of the substance evaporating in the air

. If the air Already has a high concentration of the substance evaporating, then the givensubstance will evaporate more slowly.2.

Concentration of other substances in the air

. If the air is alreadysaturated with other substances, it can have a lower capacity forth substanceevaporating.

3. Temperature of the substance. If the substance is hotter, then evaporation willbe faster.4.

Flow rate of air

. This is in part related to the concentration points above. If fresh air is MOVING over the substance all the time, then the concentration of thesubstance in the air is less likely to go up with time, thus encouraging fasterevaporation. In addition, molecules in motion have more ENERGY than those at rest,and so the stronger the flow of air, the greater the evaporating POWER of the airmolecules.

5.

Inter-molecular forces

. The stronger the forces keeping the moleculestogether in the liquid or solid state the more energy that must be input in order toevaporate them.

6. Surface area and temperature

.

The rate of evaporation of liquids variesdirectly with temperature. With the increase in the temperature, fraction of molecules having sufficient kinetic energy to escape out from the surface alsoincreases. Thus with the increase in temperature rate of evaporation alsoincreases.Molecules that escape the surface of the liquids constitute the evaporation.Therefore larger surface area contributes accelerating evaporation.

6. Nature of Liquids.

The magnitude of inter-molecular forces of attraction inliquid DETERMINES the speed of evaporation. Weaker the inter-molecular forces of attraction larger are the extent of evaporation. In diethyl ether rate of evaporationis greater than that of ethyl alcohol.

7. Composition of Environment.

The rate of evaporation of liquids dependsupon the flow of air currents above the surface of the liquid. Air current flowingover the surface of the liquid took away the molecules of the substance in vapourstate thereby preventing condensation

.

8. Density.

The higher the density, the slower a liquid evaporates. In the US, the

National Weather Service measures the actual rate of evaporation from astandardized "pan" open water surface outdoors, at various locations nationwide.Others do likewise around the world. The US data is collected and COMPILED intoan annual evaporation map. The measurements range from under 30 to overthe120 inches (3,000 mm) per year.

9. Pressure

. In an area of less pressure, evaporation happens faster because there is less exertion on the surface keeping the molecules from launching themselves.

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HEYA MATE,

HERE IS UR ANSWER.

Thanks for asking this question.

Chemical properties of acids:
Acids REACT with reactive metals. Acid + metal → salt + hydrogen. COPPER and silver do not react with dilute acid.
Acids react with BASES. Acid + base → salt + water.
Acids react with carbonates. Acid + CARBONATE → salt + water + carbon dioxide.

I HOPE IT HELPS U.

at 0 DEGREE celsius it is freezed MEANS solid and at 100 degree celsius it is VAPOUR means at GASEOUS state

Gram MOLECULAR MASS of carbon =12

12 gm of carbon=6.023*10^23 atoms

6 gm of carbon =6.023/2 * (10)^23 atoms

Gram molecular mass of magnesium =24

6.023*10^23 atoms of magnesium =24 gm

6.023/2 *(10)^23 atoms of magnesium =24/2=12 gm

......hope it HELPS U......

Hello MATE!

Cystallization is a method to PURIFY solids having some impurities in it.

It is CONSIDERED better than evaporation because :

1. SOMETIME the substance chars or decomposes like sugar on heating.

2. Sometime even after evaporation some impurities are left to be removed.

Due to these RESONS substance is been crystillaized after being evaporated.

Hope it helps

MINIMUM 3 VECTORS are NEEDED

The gas is CO2. When it PASSES through LIME WATER, lime water TURNS milky.

A mole of substance contains 6×10^23 molecules,atoms or particles. No of moles containing 10^22 molecules = 10^22/6×10^23=1/60
= n . Pressure =760 mm of HG= 1atm=P. Temperature=300K=T. use the formula below to find the volume
PV=nRT where V is the volume and R is the universal gas constant WHOSE value is 0.0821 atm litre /moles Kelvin. (1 )V=(1/60)(0.0821(300)
=> V=24.63/60=0.4105 litres =410.5 millilitres.hope it HELPS you.

Normality=molarity×basicity for acids/acidity for bases

Here N=0.02 & as oxalic acid is a dibasic acid so it will have a badicity of 2.

M=0.02÷2=0.01

Molarity=no of MOLES × VOLUME(LIT)

M=0.01×0.1=0.001moles

As 1 mole= 6.603×10*23=6.6×10*23×0.001= 6.6×10*20.

Thankyou.

As the spoon absorbs HEAT from milk that's why it's ENDOTHERMIC process....




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Because SOLUBILITY of oxygen gas in water is more than NITROGEN and any other gas present in water. This is due to the SMALL size of oxygen as compared to nitrogen so that it can easily get TRAPPED in the vacant space between water molecules.

A 1.01×1023 I HOPE it HELPS you

44.8 ANSWER of this QUESTION

Alcohol

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Acid turn BLUE lithmus into RED,acid turn


penothplein into COLOURLESS,acid sour in TASTE.
base turn red lithmus into blue,base turn penothplein into pink,base is BITTER in taste

In first part aldehyde is the functional GROUP attached to BENZENE so its name will be benzaldehyde.

in second part CARBOXYLIC acid is the functional group attached to benzene so its name will be benzoic acid.


hope it helps you

At 100° it START boiling and REALIZING vapours and at250° it TOTALLY COVERT into vapours

ANSWER:

YES for an INSULATION as SAFETY

Hey Manisharya,

The two observations on heating ferrous SULPHATE are

•The colour of the compound changes to LIGHT green to white which on further heating changes to dark brown.

•A GAS is emitted of a characteristic smell of sulphur

hope dis helps U!

with regards,

0.5 mol it means these moles INDICATE mass of NA2CO3 = 54.g
0.5 m SHOWS molarity

Because if you pour WATER in acid then the REACTION become VIGOROUS and the water splashes out CAUSING damage.

Just BCOZ ice has some AIR TRAPPED in it which decreases it's density




nothing COMPLEX. ......
hope it HELPS

The ANSWER will be 25°c

The Tyndall effect is the scattering of light as a light BEAM PASSES through a colloid. The individual suspension PARTICLES SCATTER and reflect light, making the beam visible. ... As with Rayleigh scattering, blue light is SCATTERED more strongly than red light by the Tyndall effect.

In ORDER to PREVENT from PHOTO DECOMPOSITION REACTION

HENCE the ANSWER will be (1) 1.4×10^-21

Uses of NYLON Fiber

Clothing – SHIRTS,raincoats,swimwear,cycle WEAR etc

INDUSTRIAL uses – Conveyer and seat belts, parachutes, airbags, nets and ropes, tarpaulins, thread, and tents.

so it is popular

26.67% bcz MASS % is GIVEN by (mass of solute divided by mass of soln )MULTIPLIED by 100

3.56 NA HOPE it helps you ok bye MARK me brainliest plzzz