Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

In all other reactions NaCl is not used, but a SOLUTION of NaCl(very commonly with water) is used so that Na And Cl might dissociate into ions in them and take part in the reaction.

NaCl can NOT be made to have ANY CHEMICAL reaction without it being dissociated into ions.

In this case we are doing electrolysis of water.

Electrolysis means dissociation of a compound by passing electricity through it. Now for electricity to flow either there must be free electrons or or ions.But here NaCl lacks both.So we heat it so that it reaches molten state where its ions are set free.Hence, electricity can flow via ions and allow the process of electrolysis to happen.

Hope This helps you

And By The way The question you asked was quite unique and required introspection. It REFLECTED your highly analytical skills and ability to relate everything in essence.

I feel so happy that someone is really trying to understand science in its essence and really learning and not just memorising information.But allowing your mind to ponder over science.It was great dude.

Keep up this temperament of challenging all facts by logic and reason and only then accepting them and ,not to be forgotten, pondering and contemplating science and the REASONS for SCIENTIFIC facts.

Glad to meet you dude.

Answer:

The chemical equation needs to be balanced so that it follows the law of CONSERVATION of mass. A balanced chemical equation occurs when the NUMBER of the different ATOMS of elements in the reactants side is EQUAL to that of the products side. Balancing chemical equations is a PROCESS of trial and error.

Answer:

YES, Zinc CARBONATE gives zinc OXIDE +carbon DIOXIDE when it is heated strongly.

P.s. Please mark this as the brainliest answer.  THANK you :)

ANSWER:

BIOCHEMICAL reactions are the reactions which OCCUR in living organisms. These are classified as anabolic and catabolic reactions. The catabolic reactions release energy as a RESULT they are exothermic in nature.

ANSWER:

ACETATE or some other substances with LOW BP( boiling POINT)

Answer:

6 gram will LEFT in excess.....

Explanation:

according to reaction 16 g of o2 needs only 2 g of H2.. but we have 8G.....so 6g will left in excess

hope it will help U.....

ANSWER:

the BODY is SUFFERING from anae

mia

ANSWER:

TOTAL no of electrons in n=3

=2n^2

=2(3)^2

=18 electrons

ms=+1/2

so no of electrons are 18/2 i.e., 9 electrons.

ms =+1/2;-1/2

it can't be +12.

hope u understand

ANSWER:

bromine is a NON metal liquid at ROOM temp

Answer: The reaction which RELEASES HEAT during chemical reaction is KNOWN as EXOTHERMIC Reaction.

Answer:

If iron is oxidized, it LOST an electron, and the oxidation state is changed. ...

When the transition metals combine with other atoms, some of their electrons get more energy.

When this occurs, the electrons absorb light of a given wavelength. Remember that COLORS are different WAVELENGTHS, and this changes the color.

ANSWER:glucagon

Explanation:

ANSWER:

because it is an EXCEPTION

ANSWER:

The compound A on heating GIVES a

colourless GAS, and a residue which

dissolves in water to GIVE B. When excess

Explanation:

ANSWER:

There are mainly FIVE types of chemical reactions :

1)Combination Reaction

2)Decomposition Reaction

3)Displacement Reaction

4)Double Displacement Reaction

5)REDOX Reactions

Hope it helps..

FOLLOW me!

ANSWER:the upper LAYER of EARTH (land) is called the crust

Explanation:

Answer:

carbon is an element which is TETRA VALENT and has the capacity to form COVALENT bonds with other ELEMENTS

ANSWER:

to liquefiy GASES

DECREASE temperature

and INCREASE pressure

Answer:

• compound - pure substance that are composed of two or more different element in fixed PORTION by mass eg. water
• mixture- a material obtained by mixing two or more substance in any indefinite portion is CALLED mixture eg.glass
• element- the simplest form of pure substance which can neither be BROKEN nor build for a simple substance by ORDINARY physical and chemical method is called element

ANSWER:

answer in GIVEN IMAGE..now CHECK the answer

ANSWER:

PERSPEX.....................

ANSWER:

The bulk of the WATER can OFTEN be removed by SHAKING or "washing" theorganic layer with saturated aqueous sodium chloride (otherwise known asbrine). The salt water works to pull the water from the ORGANIC layer to the water layer.

ANSWER:

As I3- has one ELECTRON, this ION has a negative charge overall. Molecules have polarity because it has both the charges that are a partially positively CHARGED end and the partially negatively charged end. So it is neither polar or nonpolar.

Answer:

Only those acids or bases areconsidered PRIMARY STANDARD which are stable and hence their strength do not change with time.Strength ofNa2CO3 also do not change hence it isconsidered as a primary standard.Na2CO3 is used as primary standardbecause it's solution's molarity REMAINS constant for a very long PERIOD.

ANSWER:

because they are HIGHLY REACTIVE.......

Answer:

Body CENTRED cubic PACKING occupy only 68% of the available volume. Sodium chloride; NaCl is a face centre cubic packing which have a packing factor of 0.74 and CONSIST of closely packed ions with coordination number of 12. The layered arrangement of ions is as given.

ANSWER:

hfkeojwbsbsbfnnviejbcnnn shhehdnfbncjrnemoslanucjrbhcjdjdnnfncncndnf dhduennfjcncbfjgbkebdiendbjcifbeb

<P>Answer:

s orbital in 2 ELECTRON and p orbital in 6 electron

Answer:

i think its carbon instead of CALCIUM and the anwer is SUGAR

EXPLANATION:

MOLECULAR formula of sugar is C12  H22 O11

ANSWER:

A SOLUTION is prepared by ADDING two GRAM of a substance A to 18 gram of water calculate the mass percent of solute.

an inorganic salt contains 62.6% of Pb, 8.4% of N and (100 - 62.6 - 8.4) = 29% of O.

find percentage-mass ratio,

For Pb ⇒62.6/207 = 0.3

[atomic mass of Pb = 207amu ]

for N ⇒8.4/14 = 0.6

[ atomic mass of N = 14 AMU ]

for O ⇒29/16 = 1.8

[ atomic mass of O = 16 amu]

now find the simple ratio of percentage mass ratio of each element,

Pb : N : O = 0.3 : 0.6 : 1.8 = 1 : 2 : 6

so, empirical FORMULA of inorganic salt is or,

Answer:

A GAS fills completely a vessel in which it is KEPT because the particles of gas have high kinetic energy INTERMOLECULAR SPACE is large and force is ENOUGH.

ANSWER:

what is the QUESTION??

Answer:

OXIDISING AGENT is a substance which GIVE hydrogen or gains oxygen.

P.s. Please MARK this as the brainliest answer.  THANK you :)

ANSWER:

when CARBON dioxide is passe through LIME water the lime water turns milky

by the formation of CACO3

Answer:

i HOPE H+ ion.

Explanation:

tooth decay starts when ph of MOUTH fall below 5.5.

HEYA MATE HERE IS YOUR ANSWER

The oxidation number of an atom is the CHARGE that would exist on the atom if the bonding were COMPLETELY IONIC. In simple IONS, the oxidation number of the atom is the charge on the ion. In a molecule or compound, the oxidation number is the sum of the oxidation numbers of its constituent atoms.

ANSWER:

ZERO have been TEMPERATURE is the COEFFICIENT in INDIA

Which will GIVE BRISK effervacense ethanol or ETHANOIC ACID?

=> Ethanol

Answer:

Zn (METAL) + Hydrogen Chloride ( liquid) -> Zinc Chloride ( sol.) ... An anhydrous SAMPLE is purified by sublimation in a stream of HCL gas, followed by heating the sublimate to 400-degree Celsius in a stream of DRY nitrogen gas. This is the PROCESS

ANSWER:

No bases don't have h+ ions.

According to lewis tbeory of ACID and base bases are DEFIND as SUBSTANCES which give OH- ions in solution while acids give h+ions in solution.

HELLO MATE HERE IS YOUR ANSWER

lime STONE (calicium CARBONATE) caco3

HOPE THIS HELPS YOU

PLEASE FOLLOW ME

MARK ME AS BRAINLIST

Answer:

Copper does not react withdilute sulphuric ACID.

When iron nails are placed in copper SULPHATE solution, the blue colour ofcopper solution is replaced by a light GREEN colour. This happens because iron; being more REACTIVE than copper; displaces copper from copper sulphate and MAKES iron sulphate.

ANSWER:

If the solution of H2SO4 is dilute, the REACTION above won’t take place.

However, if there’s heat, and the acid is concentrated, the reaction proceeds and it goes according to this:

2H2SO4 + Cu (s) → CUSO4 + SO2 + 2H2O.

ANSWER:

the TEMPERATURE at which LIQUID MELTS

REDOX Reaction is a reaction in which the process of"Reduction and Oxidation" takes place at the same time !

I hope it will help !

If you have any DOUBT then PLEASE comment below !

Answer:

Decompression sickness is a disorder in which NITROGEN dissolved in the blood and tissues by high pressure forms bubbles as pressure DECREASES. SYMPTOMS can include FATIGUE and pain in muscles and joints. PEOPLE are treated with oxygen and recompression (high-pressure, or hyperbaric, oxygen) therapy.

ANSWER:

S

Explanation:

Since it is shaped in such a way that it has SPHERICAL symmetry

Mark as brainliest

Djokovic FAN

Answer:

Diffusion

EXPLANATION:

It's a solid liquid and GASEOUS FORM work

Give TWO examples in which a changing of colour TAKE place?

1. Reaction between lead nitrate solution and potassium IODIDE solution.
2. H2O and CO2 to give copper CARBONATE, which changes COLOR from brown to blue or blue green.