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EXPLANATION:

you can EASILY FIND the answer by SIMPLE CALCULATIONS.

Answer:

aldehyde is a FUNCTIONAL GROUP. its NAME is AL

ANSWER:

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Explanation:

with the HELP of above DIAGRAM you can get an IDEA of the ELECTROLYSIS of the WATER

ANSWER:

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ANSWER:

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Explanation:

This theory FAILS to explain isoelectronic species (i.e. ELEMENTS having the same NUMBER of electrons). The species may vary in shapes despite having the same number of electrons. The VSEPR theory does not shed any LIGHT on the compounds of transition metals.

Medical Uses of Ether

As mentioned PREVIOUSLY, DIETHYL ether was one of the FIRST anesthetics used in hospitals. Anesthetics make people go to sleep, or go unconscious during surgery. PRIOR to the discovery of ether, patients had surgery while awake, and surgeons mainly did amputations. The discovery of ether allowed physicians to develop more refined surgical techniques and better understand human physiology. Since then, however, ether has been replaced with less flammable, SAFER alternatives.

An aldehyde /ˈældɪhaɪd/ is a compound containing a functional group with the STRUCTURE −CHO, consisting of a carbonyl center (a carbon double-bonded to oxygen) with the carbon atom ALSO bonded to hydrogen and to an R group,[1] which is any generic alkyl or side chain. The group—without R—is the aldehyde group, also known as the FORMYL group. Aldehydes are COMMON in organic chemistry, and MANY fragrances are or contain aldehydes.

Halohydrocarbon

Definition: A COMPOUND DERIVED from a HYDROCARBON by REPLACING a HYDROGEN atom with a halogen atom.

ANSWER:

a group of atoms RESPONSIBLE for the characteristic REACTIONS of a PARTICULAR compound

ANSWER:

MASS:-

667 g

885 g

Explanation:

DENSITY =mass by VOLUME

ANSWER:

limitations of VSEPER theory is it doesn't explain the SHAPES of electron DEFICIENT compounds

ANSWER:

the VERTICAL row in modern period is CALLED group.

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ANSWER:

It means that the LPG is UNSATURATED carbon COMPOUNDS.....

EXPLANATION:

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a b c d e f g H i j K L m N o p q R s t w x y z

ANSWER:

because there is difference between their intermolecular FORCES that's why.. weaker will be molecular forces lesser will be MELTING point....

EXPLANATION:

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Answer:

In kerosene lamp, yellow flame is produced DUE to PARTIAL combustion of kerosene. this partial combustion is due to lack of Oxygen. But in wick stove, it BURNS with BLUE flame because a PERFORATED cylinder is placed around burning wicks....

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Answer:

may be 48 is MOLECULAR weight of the substance

Explanation:

because oxygen contains 22.4 L volume for one mole. for one mole number of MOLECULES are equal to Avogadro's number (6.022 X 10²³)

GIVEN volume of oxygen is 11.2 L hence number of moles should be 0.5

Given substance weight is 24 g so if molecular weight is 48 its number of moles are 0.5

moles = weight/molecular weight

Answer:

ΔS = 2.91 J/K

Explanation:

CHANGE in Entropy is given as

= N(Cpln(T2/T1)-R*ln(P2/p1))

As per given information, p2 = 7 bar, p1 = 2 bar and T1  = 298 K

γ =Cp/Cv = 7/5 = 1.4

α =1/(γ - 1) = 2.5

Work done in reversible process;

W = α\alphaα*n*R*T1*((p2/p1)^((γ\gammaγ-1))/γ\gammaγ )-1)

Putting the values;

W = {2.5 * 8.314 * 298 * (3.5^(0.4/1.4)-1)} * 1.35

W =3599 J

Now we know that;

Cv(T2-T1) = W

Calculating final temperature = 471K

ΔS = Cpln(T2/T1)-R*ln(p2/p1) = (7*8.314/2)*ln(471/298)-8.314*ln(7/2) = 2.91 J/K

molecular weight of CO=12+16=28G

No.of MOLECULES of 28g of CO=28×6.022×10^23

No.of molecules of 5.4g of CO=?

=6.022×10^23×5.4÷28

1.161×10^23

I hope this HELPS

Answer:

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EXPLANATION:

The CHEMICAL REACTIONS for CHLOROBENZENE with respect to sulphonation, acetylation and NITRATION are:

• The sulphonation of chlorobenzene will yield O- CHLORO benzene Sulphonic acid and P- Chloro benzene Sulphonic acid.
• Acetylation of chlorobenzene will yield 2-Chloroacetophenone (ortho) and 4- chloroacetophenone (para).
• Nitration of chlorobenzene yields ortho nitro chlorobenzene and para nitro chlorobenzene.
• The reactions are given in the image.

Answer:

a. B. carbon TETRACHLORIDE

b. D. Silver nitrate

c. A. Iron

d. A. Blue VITRIOL

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Answer:

Chemical properties of acids: i) Acids REACT with active metals to give hydrogen gas. II) Acidsreact with metal CARBONATE and metal hydrogen carbonate to give CARBON dioxide. ... iv) Acidsreact with metals oxides to give salt and water.

SILVER is a metal, so it would exist as a METALLIC solid in the solid state. CO 2 is a covalently BONDED MOLECULAR compound. In the solid state, it would FORM molecular crystals.

Answer:

The Carbonate (CO2−3) Ion

Unlike O 3, though, the actual structure of CO 3 2− is an AVERAGE of THREE resonance structures. 2. Carbon has 4 VALENCE electrons, each oxygen has 6 valence electrons, and there are 2 more for the −2 charge. This GIVES 4 + (3 × 6) + 2 = 24 valence electrons.

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Answer:

The chemical compound present in ZINC blende is zinc sulphide (sulphide ore) and its chemical formula is ZnS

Quaternary ammonium salts

Quaternary ammonium salts, particularly those containing 12–18 carbon atoms chains, have been widely used as antimicrobial agents in MANUFACTURING antimicrobial textiles [41,42]. These compounds carry a positive charge at N atoms after immersed in water solution and inflict a variety of negative effects on microbes. They adsorb onto phosphate containing cell walls of bacteria through an ionic interaction, penetrate the cell wall, and then attach to the cytoplasmic membrane, thus causing the DENATURATION of proteins and RESULTING in leakage of intracellular components and the death of bacteria [43,44]. During inactivation of bacteria, quaternary ammonium groups remain intact and retain their antimicrobial ability as long as the compounds are attached to textiles. However, because of the slow release mechanism, the washing durability of treated fabrics is limited due to the amount of biocides incorporated. Moreover, quaternary ammonium salts have a relatively lower antibacterial efficacy compared with other antibacterial compounds [45,46]. Today, new kinds of quaternary ammonium compounds have been synthesized and successfully treated on textiles.

Organosilicon quaternary salts are a novel type of cationic surfactants with hydrophobic groups containing silicon. In general, this type of surfactant exhibits excellent properties such as low critical micelle concentration (CMC), thermal stability, low temperature flexibility, and chemical inertness. This kind of biocide also has good antimicrobial activity toward gram-positive and gram-negtive bacteria, yeast, fungi, and mold. DOW Corning first synthesized an organosilicon quaternry salt (DC-5700, Figure 9.1). It is a reactive silane that is able to react with many materials such as cotton, glass, or polyester by the hydrolyzed silanol. The treated materials showed antibacterial property after repeated washings [47]. The toxicity experiments with DC-5700 indicated that the median lethal dose is LD50=12.27 g/kg±0.116 g/kg and it cannot be absorbed into body through treated fabrics [48], which shows that this kind of organosilicon quaternary salt is probably a safe antibacterial agent.

Given:

10 ml of 0.1 molar Dilute HCL is titrated  with 16.2 ml of SODIUM CARBONATE solution .

To FIND :

How many moles of HCL will be used.

Solution:

NA2CO3 (aq) + 2 HCl (aq) → 2 NaCl (aq) + CO2 (g) + H2O (l)

We Know that ,

Molarity = [n/v]*100

For HCL solution

0.1 = [n/10]*100

n = 0.01 moles

For 1 mole of sodium carbonate  2 moles of  HCL is required

=> For 1 mole of  HCL , 1/2 mole of sodium carbonate  is required

=>  For 0.01 mole of  HCL , 0.005 mole of sodium carbonate  is required

Hence,  0.01 mole of  HCL & 0.005 mole of sodium carbonate  are used

Answer:

Helium GAS is used to inflate blimps, scientific balloons and party balloons. It is used as an inert shield for arc welding, to pressurize the fuel tanks of LIQUID fueled rockets and in supersonic windtunnels

Neon is used in vacuum TUBES, high-voltage indicators, lightning arresters, wavemeter tubes, television tubes, and helium–neon lasers. LIQUEFIED neon is commercially used as a cryogenic refrigerant in applications not requiring the lower TEMPERATURE range attainable with more extreme liquid-helium refrigeration.

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ANSWER:

So its new mass WOULD be 6protons×3+6neutrons×1/2=

18+3=21 amu.

I HOPE it helps you.☺

Explanation:

ANSWER:

IONIC nature of KMnO

Explanation:

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ANSWER:

sorry. I tried but can't FIND the correct answer. there is some error occuring in the answer. please FIRST you TRY to find out , there will be any error in the answer.

Quantum STATE is a state of a quantized system which is DESCRIBED by a set of quantum numbers.

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ANSWER:

There are two STRUCTURAL ISOMERS for butane,

1. N butane

2. 2 Methyl PROPANE

Melting points of metals depend on the strength of metallic bond.

Aluminium has HIGHER melting point which means it has a stronger mettalic bond than magnesium.

Aluminium WOULD have stronger ATTRACTION between its electrons and positive IONS, that keep it resistant against HEAT

Explanation:

Glomerular filtration is the process WHEREBY a clear fluid, from which BLOOD cells and ... blood cells do not pass through the capillary WALL and HENCE do not appear in the LUMINAL fluid.

Red PHOSPHORUS also has groups of 4 atoms, but they are not rings. One side is OPEN, which allows each P4 GROUP to chemically bond to a NEIGHBORING group, so that a huge amorphous network is formed instead of individual molecules. This is a relatively stable arrangement which makes the red phosphorus less reactive.

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GIVEN that,

Cell potential of Al

Cell potential of ZN

We KNOW that,

Zinc is anode and silver is cathode.

We NEED to calculate the cell potential E⁰

Using formula of cell potential

Where, = cell potential of Al

= cell potential of Zn

Put the value into the formula

Hence, The cell potential E⁰ is -0.9 V.

ANSWER:

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Explanation:

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ANSWER:

Where are ELEMENTS BROTHERS

<STRONG>ANSWER:

STRONG ACID AND WEAK BASE (C) IS CORRECT OPTIONS DUDE

Answer:

2 . 2.25

EXPLANATION:

ANSWER:

COBO

Explanation:

this is the RIGHT answer IAM THINKING

Answer:

In chemistry, a salt is a solid chemical COMPOUND consisting of an IONIC assembly of CATIONS ... ALCHEMY. 

Answer:

All CHAPTERS are easy if you are good at understanding but I WOULD RECOMMEND chemistry ch 4 carbon and COMPOUNDS

PH : 1-14 (red-blue)

ANSWER:

atomicitiy can be defined as NUMBER of atoms present in one molecule

of the ELEMENT

ANSWER:

CO(BO) option A no options will be the ANS