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ANSWER:

We FIND NEW things and differences are there but we can't UNDERSTAND them

Answer:

HERE IS YOUR ANSWER:-

Usually both type of water are used in preparation of microbial CULTURE media. However the water source used for distillation and deionization process can make difference. the deionized water is FREE from IONS but chances of non-ionic compound .

e.g. glucose, O2 Etc..

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ANSWER:

The marketing board is ALSO duty bound to ensure the supply of inputs to the industry. The procurement of seedlings, fertilizers, pesticides, spraying cans, etc are some of the items that are NEEDED by the PRODUCERS and the marketing board MUST make sure it procures and resources the producers.

ANSWER:

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Answer:

HERE IS YOUR ANSWER:-

5 different materials used to make Shoes are:-

1. LEATHER
2. CANVAS
3. TEXTILES
4. NATURAL RUBBER
5. SYNTHETICS.... ETC.. MANY materials are there which are used for making shoes.

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ANSWER:

Answer:

a) history

b) circumnavigation

c) engine

d) wingspan

e) weight

f) fuel

g) load

h) highway

i) height

j) schools

[HOPE it helps.]

ANSWER:

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Explanation:

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ANSWER:

Oxalic acid is used in removing INK STAIN from clothes as it is helpful in the reaction of insoluble iron to the SOLUBLE complex ion. For the removal of ink stain from clothes, the SOLVENTS are used.

ANSWER:

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Answer:

CHARCOAL is not an inflammable substance. . LPG, petrol, and ALCOHOL are some examples of inflammable substances. HENCE, one should be very careful when USING these substances.

ANSWER:

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ANSWER:

CATHODE reaction : 2H

+

+2e

−

→2H→H

2

ANODE reaction : 2OH

−

−2e

−

→2OH→H

2

O+O+O→O

2

ANSWER:

This INFORMATION is from my PDF if any PROBLEM POST it again

<STRONG>Answer:

HCl is a strong ACID that dissociates COMPLETELY:

HCl(aq) → H+(aq) + Cl-(aq)

[H+] = [HCl] = 0.005M

PH = -LOG [H+]

pH = - log 0.005

pH = 2.3

Answer:

HERE IS YOUR ANSWER!!

An orbital overlap is the CONCENTRATION of orbitals on adjacent atoms in the same regions of space. Orbital overlap can lead to bond formation.

for example:- The carbon HYBRID orbitals have greater overlap with the hydrogen orbitals, and can therefore form STRONGER C–H bonds.

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ANSWER:

You PROBABLY used paper chromatography as ONE of the first things you ever did in chemistry to separate out mixtures of coloured dyes - for example, the dyes which make up a particular ink. ... Samples of each ink are SPOTTED on to a pencil LINE drawn on a sheet of chromatography paper.

Answer:

In atomic theory and quantum mechanics, an atomic orbital is a mathematical function DESCRIBING the location and wave-like behavior of an ELECTRON in an atom.[1] This function can be used to CALCULATE the probability of finding any electron of an atom in any specific region around the atom's nucleus. The term atomic orbital may also refer to the PHYSICAL region or space where the electron can be CALCULATED to be present, as predicted by the particular mathematical form of the orbital.[2]

Answer:

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ANSWER:

FORMAL eldihide HOGA SAYAD

ANSWER:

Lv the latent HEAT of vaporization of SOLVENT in calories per gram. ... The concentration of the solution containing ONE gram mole in V litres.

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Answer:

2) HOMOGENEOUS MIXTURE

Explanation:

The ALLOYS are homogeneous mixture. Thus, OPTION (2) is the correct answer.

ANSWER:

An azeotropic MIXTURE is a mixture of SUBSTANCES that has the same concentration of vapour and FLUID phases. It is basically a mixture that contains two or more liquids. A zeotropic mixture basically has constant or the same boiling points and the mixtures' vapour will also have the same composition as the LIQUID.

ANSWER:

In ORDER for a haloalkane to dissolve in water, energy is required to overcome the attraction between the haloalkane molecules and BREAK the hydrogen BONDS between water molecules. Less energy is released when new attractions are set up between the haloalkane and the water molecules as these are not as strong as the original hydrogen bonds in water. As a result, the solubility of HALOALKANES in water is low.

Answer:

HERE IS YOUR ANSWER:-

(i) Cu → Cu²+ + 2e–

- REDUCTION REACTION

(ii) Cu²+ + 2E- → Cu

- REDUCTION REACTION

(III) Sn⁴+ + 2e → Sn²+

- OXIDATION REACTION

(iv) 2Cl- + Cl² + 2e-

- REDUCTION REACTION

(V) Fe²+ + Fe³+ + le-

- REDUCTION REACTION

(vi) X + 2e → X²-

- OXIDATION REACTION

(vii) Y - le- → Y¹+

- OXIDATION REACTION

(VIII) Z³+ + le- → Z²+

- OXIDATION REACTION

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Answer:

The LOWER the level of RESISTIVITY, the more electrical conductivity a metal has. Copper has LOW resistivity, and therefore is an excellent conductor. Copper is also LESS oxidative than other metals.

ANSWER:

what AMMOUNT of SUBSTANCE is there is N 8+$(-$-"

ANSWER:

It is generally stated that ICI DISSOLVES in ALCOHOL and ether forming YELLOW solution. The chlorine probably acts on ether to form dichloro-ether (C4H8Cl2O)

ANSWER:

NONE of these is the CORRECT answer

Answer:

A PURE substance is a substance which has only one TYPE of atoms or molecules THEREBY having a CONSTANT composition and structure. Complete answer: Substances which are made up of only one kind of atoms or molecules and have a definite composition throughout and have a fixed structure are KNOWN as pure substances

CaC2 + 2H2O → Ca(OH)2 + C2H2↑

Calcium carbide production requires extremely high temperatures, ~2000 °C, necessitating the USE of an ELECTRIC arc FURNACE. In the US, this process was an important part of the late-19th CENTURY revolution in chemistry ENABLED by the massive hydroelectric power project at Niagara Falls.

Answer:

The hydoxyl GROUP will commonly be bonded to a carbon atom in this fashion: And this structure might be FOUND, for example, as part of a glucose molecule, depicted below. This molecule of the sugar glucose consists of 6 carbon atoms bonded together as a chain with ADDITIONAL atoms of OXYGEN and hydrogen.

Answer:

MASS of methanol required is

M=Volume of SOLUTION × Molariy of solution×Molar mass of methanol

M=Volume of solution × Molariy of solution×Molar mass of methanol=2.5×0.25×32=20 g.

M=Volume of solution × Molariy of solution×Molar mass of methanol=2.5×0.25×32=20 g.Volume of methanol NEEDED = mass/density

M=Volume of solution × Molariy of solution×Molar mass of methanol=2.5×0.25×32=20 g.Volume of methanol needed = mass/density=20/0.793

M=Volume of solution × Molariy of solution×Molar mass of methanol=2.5×0.25×32=20 g.Volume of methanol needed = mass/density=20/0.793=25.22 ML.

Answer:

Galvanising is a method of RUST prevention. The iron or steel OBJECT is COATED in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal . Zinc is more REACTIVE than iron, so it oxidises in preference to the iron object.

Benzene and TOLUENE form an ideal SOLUTION over the ENTIRE range of composition. The vapour pressure of pure benzene and toluene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of toluene.

Explanation:

NUMBER of moles is the ratio of mass to molar mass.

The molar masses of benzene and toluene are 78 g/mol and 92 g/mol respectively.

Number of moles of benzene =7880=1.026

Number of moles of toluene =92100=1.087

Mole fraction of benzene, XB=1.026+1.0871.026=0.486

Mole fraction of toluene, XT=1−0.486=0.514

PB=PBo×XB=50.71×0.486=24.65 mm Hg

PT=PToXT=32.06×0.514=16.48 mm of Hg

Total vapour pressure =24.65+16.48=41.13 mm Hg

Mole fraction of benzene in vapour phase is as follows:

YB=41.1324.65=0.60

ANSWER:

U can CHOOSE nceart for SOLVING

Answer:

as stone has mass and occupies SPACE the level

of water rises..

EXPLANATION:

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ANSWER:

REST is 60 GRAM because 115-55=60

Answer:

1) X2Y, 2) Covalent bonding, Y is the bad of conductor of electricity because it is a non-metal.

Explanation:

● 1) The ELEMENT X belongs to GROUP - 1 of the periodic table. It contains 1 valance electron. The element Y belongs to group - 16 of the periodic table and contains 6 valance electrons. The element Y requires 2 more electrons from X to complete its OCTET. So, the formula of compound of X and Y is X2Y. ●2) Z is a HALOGEN . Its molecule possesses covalent bonding because of mutual sharing of electrons between two Z atoms.

Answer:

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ANSWER: d) Zn has HIGHER negative ELECTRODE potential than iron..

Explanation:

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ANSWER:

here is UR answer

EXPLANATION:

ROASTING

ANSWER:

CHANGE in COLOUR he he he he he he he he he he he he he he he he

Answer:

HI dear

Explanation:

your answer is

Ions are formed as atoms lose or gain electrons to satisfy the octet law and have complete electron SHELLS of the outer valence. They become POSITIVELY charged as they lose electrons, and are called cations. They are charged negatively when they gain electrons, and are called anions.

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ANSWER:

all of the above are MIXTURES

Answer:

EDTA

Direct Titration- It is the most convenient and SIMPLE method of complexometric titration using EDTA. It is similar to acid-base titration technique. In this titration standard EDTA solution is added to GIVEN SAMPLE CONTAINING metals using burette till the end point is ACHIEVED.

ANSWER:

don't KNOW the answer but

Answer:

Moseley's law is an empirical law concerning the characteristic x-rays emitted by atoms. The law had been discovered and published by the English physicist Henry Moseley in 1913-1914.[1][2] Until Moseley's work, "atomic number" was merely an element's place in the periodic table and was not known to be associated with any measurable physical QUANTITY.[3] In BRIEF, the law states that the SQUARE root of the frequency of the emitted x-ray is approximately proportional to the atomic number

Explanation:

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ANSWER:

a) ETHYL alcohol

Explanation:

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