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They are REUSE,recycle,recover,REDUCE and another ONE is refuse.
We should use all things in again use,cover,low use.

For BALANCING the equation,no. of atoms of every element on REACTANT and product SIDE must be equal.
And you must Oxygen at last.
2H2 +02 --> 2H20

In this PROCESS You GET m_ NITROCHLOROBENZENE

GLUCOSE = C6H12O6 = 72 +12 + 96 = 180

moles = wt/mol.wt = 270/180 = 1.5 moles.

1 MOLE contains 6.023 x 10^23 glucose molecules.

therefore 1.5 moles contains 9.0345x10^23 molecules of glucose.

It is the emittion of ELECTRONS or CHARGE FREE CAREERS.

Through PH paper/Solution TEST.

It is not advisable to burn PLASTIC and other synthetic fibres because when burnt, they release dangerous toxics which are injurious to health and cause DEADLY diseases. They ALSO cause air pollution and mainly RELEASES carbon DIOXIDE in air.

Planck's law describes the spectral density of electromagnetic radiation EMITTED by a black body in THERMAL EQUILIBRIUM at given temperature T. The law is NAMED after Max Planck who proposed it in 1900. it is a pioneering RESULT of modern physics or Quantum theory

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Amount of a substance (CALLED the solute) that dissolves in a unit volume of a liquid substance (called the SOLVENT) to form a SATURATED solution under specified conditions of temperature and pressure. Solubility is expressed USUALLY as moles of solute per 100 grams of solvent.

The number of GRAM atoms of OXYGEN present in 0.3 gram MOLE of H2C2O4.2H2OH2C2O4.2H2O(oxalic ACID) is

(a)0.3(c)1.2(B)0.6(d)1.8

Half life and RATE constant for a FIRST ORDER reaction are RELATED by,

Rate constant of the reaction is 0.0693 min^-1

WT of metal = 0.5

wt of metal OXIDE = 1.5

wt of oxygen = 1

1 g of oxygen combines with 0.5 g of metal

8 gm will combine with 8 X 0.5 = 4 gm of metal

eq.mass ofmetal = 4 gm

88 G co2 is 2 MOLES of co2 ( 1 mole co2 = 44 GM)

You will observe that some PLASTIC ARTICLES can bend EASILY and some break when forced to bent such plastics which gets be FORMED easily on heating and can bent easily KNOWN as thermoplastics

It is a MIXTURE of TWO more SUBSTANCE

A compound contains ATOMS of DIFFERENT elements chemically COMBINED together in a fixed ratio. An ELEMENT is a pure chemical SUBSTANCE made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.

It is possible to store acidic liquids and foods inside aluminium containers (like it is done for sodas, fish cans etc.). The aluminium is PROTECTED with a polymer COATING to prevent unwanted reaction and release of aluminium IONS into the food. Depending on the TYPE / thickness of the coating, time of storage and reactivity of the food it can happen that the coating will fail at some point.

This will be HELPFUL I THINK.

Because dry hCL did not release H+ IONS where as when it is diluted it release h+ ions

Electropositive implies having tendency to lose electron to FORM a positive ion. ELECTRONEGATIVE implies having tendency to gain electron to form a NEGATIVE ion.

Hardy schulze rule

“Greater is the valency of coagulating ion added, the greater is its power to cause precipitation ”. In the COAGULATION of a negative colloidal solution the coagulating power is as :

All^3++ > Ba^++ > Na^+

In the coagulation of a positive colloidal solution the following power is as :

[ Fe(CN)6]^4- , Po4^3-, SO4^2- , Cl^-

Protection of colloids:

Lyophobic colloidal solutions  are coagulated on addition of electrolytes while lyophillic colloidal solutions are not coagulated by electrolyte . If small amount of lyophillic colloidal solution is present along with a lyophobic colloidal solution, the addition of a small amount of electrolyte does not coagulate either of them. It means  presence of lyophillic colloidal solution prevents a lyophobic colloidal solution from coagulation. This phenomenon is known as protection & the lyophillic colloid used for this purpose is known as protective colloid.

When a lyophillic colloid is added to a lyophobic colloidal solution, the particles of lyophobic colloidal solution adsorbs the particles of lyophillic colloid around them & behaves like lyophillic colloidal solution. This prevent them from coagulation.

Gold Number:

” The Gold number is defined as the number of milligrams of the protective colloid in dry state which when added to 10 ml of a colloidal solution of gold, prevents the gold solution from coagulation on addition of 1 ml of 10%  NaCl solution.”

Gold number of different lyophillic colloids are different. Lesser is the gold number greater is the protective power.

Question : The coagulation of 100 ml of a colloidal solution of gold is completely prevented by adding 0.25 gm of starch to it before adding 10 ml of 10% NaCl solution. Find out the gold number of starch ?

solution:

100 ml gold solution requires = 0.25 gm starch ( i.e 250 mg starch)

10 ml gold solution requires = 250 × 10 / 100 = 25 mg

10ml of 10 % NaCl solution is added to 100 ml gold solution. Thus 1 ml of 10% NaCl solution been added to 10 ml solution of gold.

Question: The coagulation of 10 ml of a colloidal solution of gold  can be completely STOPPED by the  addition of  0.025 gms of starch before the addition of  1 ml of 10% NaCl solution. What  is  the gold number ?

solution:

Coagulation of 10 ml of colloidal solution of gold can be stopped by the addition of

1 ml of 10% NaCl = number of milligrams of starch

= 0.025 gm =  0.025 × 1000 mg = 25 mg.

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Thermoplastic are TYPE of plastic which can be MOULDED again and again at high temperature EVEN after being set for once....
thermosets once moulded can't be moulded again even at high temperature...
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Salt is a compound formed by neutralization reaction between an acid and a BASE. They generally ionize in water furnishing cations and ANIONS. The cations or anions formed during ionization of salts EITHER exist as hydrated ions in AQUEOUS solutions or interact with water to regenerate the acids and bases. The process of interaction between cations or anions of salts and water is known as hydrolysis of salts. On the basis of hydrolysis, salts are divided into THREE categories:

✴Acidic salts
✴Basic salts
✴Neutral salts

The PLASTIC bag is CHEAP and strong also but it can HARM the ENVIRONMENT

The plastic ARTICLE be BENT both easily but hard not be bend easily

This is because:-

NYLON rope is very strong and can be USED for ROCK climbing and in parachutes.

✴we have not used cotton or JUTE rope because they are very weak. Their tensile STRENGTH is not much and they might break.

The the UMBRELLA USED for RAIN

They have electronic configiration of NS2NP2 and..they act as metals...which has OXIDATION...STATE...

FRENKEL defects are the defects in which the IONS LEAVE their positions and occupy interstitial sites.

-Frenkel DEFECT in AgCl can be explained by the FOLLOWING -

-There is a difference between the sizes of Ag and Cl atoms

-Thus Ag atom leaves its positions and occupies interstitial sites.

-This creates a vacancy defect at their positions and interstitial defect at the new sites

Uric ACID is a HETEROCYCLIC compound of carbon, nitrogen, oxygen, and hydrogen with the FORMULA C5H4N4O3. It FORMS IONS and salts known as urates and acid urates, such as ammonium acid urate.

Hi,

The quantum mechanical model of the atom USES complex SHAPES of ORBITALS (sometimes called electron clouds), volumes of space in which there is LIKELY to be an electron. So, this model is based on PROBABILITY rather than certainty.


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Polyethylene terephthalate (sometimes written poly(ethylene terephthalate)), commonly abbreviatedPET, PETE, or the obsolete PETP orPET-P, is the most COMMON thermoplastic polymer resin of the polyester family and is used in fibres for CLOTHING, containers for LIQUIDS and FOODS, thermoforming for manufacturing, and in ...

Plastic articles are available in all shapes and sizes because plastic is considered tobe a different MATERIAL as it becomes soft on HEATING and becomes hard when cooled to lower temperatures. ... SINCE liquid has the tendency TOTAKE the shape of the container, the molten plasticis poured into different vessels.Plastic is a unique material which becomes soft on heating and hard on cooling. ... As liquida have tendency to take the shape of container,therefore, when, molten plastic is poured into differentvessels,it takes the shape of vessels on cooling. Thus,a plastic can be moulded into different shapes and sizes.Hope it helps.

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6°/° of ALCOHOL is MIXED for 2ML .........

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Relation between velocity (v), WAVELENGTH (λ) and frequency(f) is:

λ = v/f

Let the velocity be the speed of LIGHT i.e. 3×10^8m/s

For RADIO station with f= 1120 kHz,

λ = 3×10^8 / 1120 x 10^3

= 3/112 x 10^4

= 267.86 m

For radio station with f= 98.7 MHZ,

λ = 3×10^8 / 98.7 x 10^6

= 3/98.7 x 10^4

= 3.04 m

So, Wavelengths of RADIATIONS are 267.86m and 3.04m respectively

Lithium is UR ANSWER

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any PAINT can be USED. just the PURPOSE is to COVER the SURFACE

If baking soda is used then the cake will TURN BITTER....on adding tartaric acid in it..it becomes soft and FLUFFY...
Here tartaric acid neutralises the bitter TASTE of sodium carbonate...