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acetic acid and his formula is. ch3 cooh

vinegar ko general form me sirka bhi bolte hai. iska IUPAC name acetic acid hota hai & iska formula hai: -CH3COOH

Antimony - Sb Iron - Fe Mercury - HgGold - Au

Gold-Aurum

Iron-Ferrum

Lead-Plumbum

Tin - stannum

Mr. Iron was the neighbour of Mr. William Wade. Was a well known Latin scholar. Helen would frequently visit him in Hulton , Pennsylvania to study under him. He was a man who was extraordinarily sweet in Helen's eyes. He was acting and sweet man who always helped her and motivated Helen to come up. He would also help her to deal with her weak subjects. Like Latin and arithmetic. Mark me as the brainliest.

Molecular weight of H2SO4 = 98 g/mol

15 g of H2SO4 = 15/98 ≈ 0.15 moles

1 mole = 6.023 × 10^23 molecules

0.15 moles =9.023× 10^22 molecules

One molecule of H2SO4 has 4 oxygen atoms,

therefore ;

Number of oxygen atom in 0.15 mole = 4 × 9.023 × 10^22

= 36.1 × 10^22 oxygen atoms

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बेंज़ीनयाधूपेन्यएकहाइड्रोकार्बनहै जिसका अणुसूत्रC6H6है। बेंजीन का अणु ६कार्बनपरमाणुओं से बना होता है जो एक छल्ले की तरह जुड़े होते हैं तथा प्रत्येक कार्बन परमाणु से एकहाइड्रोजनपरमाणु जुड़ा होता है।

बेंजीन,पेट्रोलियम(क्रूड ऑयल) में प्राकृतिक रूप से पाया जाता है।कोयलेके शुष्क आसवन सेअलकतरातथा अलकतरे केप्रभाजी आसवन(fractional distillation) से बेंजीन बड़ी मात्रा में तैयार होता है।प्रदीपन गैससे प्राप्त तेल सेफैराडेने 1825 ई. में सर्वप्रथम इसे प्राप्त किया था। मिटशरले ने 1834 ई. मेंबेंज़ोइक अम्लसे इसे प्राप्त किया और इसका नाम बेंजीन रखा। अलकतरे में इसकी उपस्थिति का पता पहले पहल 1845 ई. में हॉफमैन (Hoffmann) ने लगाया था।जर्मनीमें बेंजीन को 'बेंज़ोल' कहते हैं।

बेंजीन रंगहीन, मीठी गन्थ वाला, अत्यन्त ज्वलनशील द्रव है। इसका उपयोगएथिलबेंजीन्नऔरक्यूमीन(cumene) आदि भारी मात्रा में उत्पादित रसायनों के निर्माण में होता है। चूँकि बेंजीन काऑक्टेन संख्याअधिक होती है, इसलियेपेट्रोलमें कुछ प्रतिशत तक यह मिलाया गया होता है। यहकैंसरजनहै जिसके कारण इसका गैर-औद्योगिक उपयोग कम ही होता है।

Metals lie in the S- block, known as the alkali and alkali earth metals, and the D- block know as transition and inner transition metals.

metals like in the s block and d block

Thousand thnks

Canu tell me pne thing more

Is photo mein jo elements zig zag line k left pr hai wo kon se block mein hai

It will be same because it's the simple atom with just one electron hence the electron will move with constant speed in all orbits. Hence option d) is correct.

it's wrong

(c) will be the answer

If the pH of a solution is less than 7, the solution is called acidic;

the correct option is 1

If the pH of a solution is less than 7, the solution is called acidic;

answr given is basic

If the pH of a solution is less than 7, the solution is called acidic; if the pH is about 7, the solution is neutral; if the pH is greater than 7, the solution is is called basic.

pH of pure watet is 7.

ph of pure water is 7

pH is the abbreviation for power of Hydrogen. The pH of pure water is 7.

7 is the pH of water

pH of pure water is 7

6.5 is right answer this question

A neutral solution contain pH of 7, they have free molecules like H+ or OH-

For pure waterpH =1/2 pkw

so pH=1/2 13.36

=6.68

Ans :- You have noformula to calculate numberof constitutionalisomers. You have to make all possibilities and count, But you have aformula to calculateno. of stereoisomers. The generalformula forcalculatingstereoisomer is: 2^n, where n is thenumberof chial centers.

Ans :- Positional isomers are constitutional isomers that have the same carbon skeleton and the same functional groups but differ from each other in the location of the functional groups on or in the carbon chain. They have the same functional group, an alkene group.

Theexistenceof two or more compounds having the samemolecularformula but a differentarrangementof atoms within themolecule.

Velocity of an electron is proportional to Z/n where Z is the Atomic Number and n is the orbit.

Here, for a particular Z, ratio of velocities of I, II and III orbit = 1:1/2:1/3

Thus, Option (2) is correct.

From the universal gas law and also from intuition, we can say that PV/T is constant.

Now if T is also constant, we get PV = constant.

This equation resembles a hyperbola..

Another way of looking at it is, if P increases, V decreases and vice versa. So, at regions where P is high, V will be low and at regions where P is low, V will be high.

15.GAS is the substance that hasneither a fixed shape nor a fixed volume.It has high compressibilitygases have low-densitygases can flow

16. LPG in homes and Oxygen in hospitals

Iron(Fe) and copper(Cu) are solid metals at room temperature.Carbon(C) and sulphur(S) are non-metals which are solids at room temperature.

Environment- It is everything in our surrounding including both biotic and abiotic resource which influence our life directly or indirectly.

option D , because H will be more stable in loosing one e-

The copper sulfate solution consists of copper ion and sulfate ion.When iron nail is dipped in it the element iron being more reactive than copper displaces copper from it's sulfate to form iron sulfate.

When aniron nail dippedin thecopper sulphatesolution thanirondisplacescopperfrom thecopper sulphatebecauseironis more reactive thancopper. Therefore thecolourof thecopper sulphatesolutionchanges.

Ironismore reactive thancopper. So, when an iron nailisdipped in acopper sulphate solution, iron displacescopperfrom itssolutionto form ironsulphate, whichis greenincolor. Hence, the bluecolor of copper sulphate solution changesintogreen colorbecause of this displacement reaction.

Answer:When an iron nail dipped in the copper sulphate solution than iron displaces copper from the copper sulphate because iron is more reactive than copper. Therefore the colour of the copper sulphate solution changes.The reaction involved is

The substance that added with oxygen is said to be oxidized whereas removal of oxygen is called as reduction and the substance is said to be reduced.

So, we need to check the addition of oxygen or removal of oxygen to check the oxidation and reduction.

(i) Na changes to Na2O . Hence, oxygen added so here Na oxidized and O2 reduced.

(ii) CuO changes to Cu hence oxygen is removed from CuO. Hence, CuO is reduced and H2 is oxidized.

Example of double displacement reaction:

Bacl2 +Na2SO4 = BaSO4 +2NaCl

thanks

Alpha tocopherol

Ans :- Sodiumis high reactive element. If it iskeptin open it can explosively react with oxygen to catch fire. Hence to prevent accidental damagesodiumisimmersed in kerosene oil.

40.92 x 1 mole C/ 12g C = 3.14 mole C

4.48 x 1mole H/ 1.008 g H = 4.43 mole H

54.50 x 1 mole O/ 16g O = 3.41 mole O

Dividing each of the three numbers by the smallest one (3.41 mol) gives a C:H:O mole ratio of 1 :1.33 :1 this gives the empirical formula: C3 x 1 H3 x 1.33 O3 x 1 or C3H4O3

any other method?

Point defects are defects that occur only at or around a single lattice point. They are not extended in space in any dimension. Strict limits for how small a point defect is are generally not defined explicitly. However, these defects typically involve at most a few extra or missing atoms. Larger defects in an ordered structure are usually considereddislocationloops. For historical reasons, many point defects, especially in ionic crystals, are calledcenters: for example a vacancy in many ionic solids is called a luminescence center, a color center, orF-center. These dislocations permit ionic transport through crystals leading to electrochemical reactions. These are frequently specified usingKröger–Vink Notation.

Vacancy defectsare lattice sites which would be occupied in a perfect crystal, but are vacant. If a neighboring atom moves to occupy the vacant site, the vacancy moves in the opposite direction to the site which used to be occupied by the moving atom. The stability of the surrounding crystal structure guarantees that the neighboring atoms will not simply collapse around the vacancy. In some materials, neighboring atoms actually move away from a vacancy, because they experience attraction from atoms in the surroundings. A vacancy (or pair of vacancies in an ionic solid) is sometimes called aSchottky defect.

Interstitial defectsare atoms that occupy a site in the crystal structure at which there is usually not an atom. They are generally high energy configurations. Small atoms in some crystals can occupy interstices without high energy, such ashydrogeninpalladium.

Schematic illustration of some simple point defect types in a monatomic solid

A nearby pair of a vacancy and an interstitial is often called aFrenkel defector Frenkel pair. This is caused when an ion moves into an interstitial site and creates a vacancy.

Due to fundamental limitations of material purification methods, materials are never 100% pure, which by definition induces defects in crystal structure. In the case of an impurity, the atom is often incorporated at a regular atomic site in the crystal structure. This is neither a vacant site nor is the atom on an interstitial site and it is called asubstitutionaldefect. The atom is not supposed to be anywhere in the crystal, and is thus an impurity. In some cases where the radius of the substitutional atom (ion) is substantially smaller than that of the atom (ion) it is replacing, its equilibrium position can be shifted away from the lattice site.These types of substitutional defects are often referred to asoff-center ions. There are two different types of substitutional defects:Isovalent substitution and aliovalent substitution. Isovalent substitution is where the ion that is substituting the original ion is of the same oxidation state as the ion it is replacing. Aliovalent substitution is where the ion that is substituting the original ion is of a different oxidation state than the ion it is replacing. Aliovalent substitutions change the overall charge within the ionic compound, but the ionic compound must be neutral. Therefore, a charge compensation mechanism is required. Hence either one of the metals is partially or fully oxidised or reduced, or ion vacancies are created.

Antisite defects occur in an ordered alloy or compound when atoms of different type exchange positions. For example, some alloys have a regular structure in which every other atom is a different species;for illustration assume that type A atoms sit on the corners of a cubic lattice, and type B atoms sit in the center of the cubes. If one cube has an A atom at its center, the atom is on a site usually occupied by a B atom, and is thus an antisite defect. This is neither a vacancy nor an interstitial, nor an impurity.

Topological defects are regions in a crystal where the normal chemical bonding environment is topologically different from the surroundings.

For instance, in a perfect sheet of graphite (graphene) all atoms are in rings containing six atoms. If the sheet contains regions where the number of atoms in a ring is different from six, while the total number of atoms remains the same, a topological defect has formed. An example is theStone Wales defectin nanotubes, which consists of two adjacent 5-membered and two 7-membered atom rings.

Schematic illustration of defects in a compound solid, using GaAs as an example.

Alsoamorphoussolids may contain defects. These are naturally somewhat hard to define, but sometimes their nature can be quite easily understood. For instance, in ideally bonded amorphoussilicaall Si atoms have 4 bonds to O atoms and all O atoms have 2 bonds to Si atom. Thus e.g. an O atom with only one Si bond (adangling bond) can be considered a defect in silica. Moreover, defects can also be defined in amorphous solids based on empty or densely packed local atomic neighbourhoods, and the properties of such 'defects' can be shown to be similar to normal vacancies and interstitials in crystals. Complexes can form between different kinds of point defects. For example, if a vacancy encounters an impurity, the two may bind together if the impurity is too large for the lattice. Interstitials can form 'split interstitial' or 'dumbbell' structures where two atoms effectively share an atomic site, resulting in neither atom actually occupying the site.