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Ans :- In chemistry, a suspension is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation. A suspension is a heterogeneous mixture in which the solute particles do not dissolve, but get suspended throughout the bulk of the solvent, left floating around freely in the medium.

Polyethylene is a polymer consisting of long chains of the monomerethylene(IUPAC nameethene).

Functionalityin polymer chemistry. According to IUPAC, thefunctionality of amonomerisdefinedas the number of bonds that amonomer's repeating unit forms in a polymer with othermonomers. Thus in the case of a functionalityof f = 2 a linear polymer is formed by polymerizing (a thermoplastic).

Glyptal is formed using phthalic anhydride monomerand glycerolmonomer. The addition of this hydroxyl group allows for extensive branching during polymerization.

MA is a vinyl polymer, made by free radical vinyl polymerization from the monomer methyl methacrylate. As you can see from the picture below, the structure of methyl methacrylate kind of looks like Massachusetts. But Massachusetts doesn't polymerize, because there's only one.

When carbon dioxide is passed through lime water for a short time,it turns lime water milky due to formation of a white precipitate ofcalciumcarbonate.

egg shell contains calcium carbonatehencewhen treated with HCl-Ait produces carbon diaoxideB-CO2

Ans :- In chemistry, a suspension is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation. ... A suspension is a heterogeneous mixture in which the solute particles do not dissolve, but get suspended throughout the bulk of the solvent, left floating around freely in the medium.

A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east)

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In acombination reactiontwo or more substances are combined to form new substance while in thedecomposition reactionone substance decomposes into two or more substances. Hence, thedecomposition reactionsare calledopposite of combination reactions.

The answer is option 3.

thanks

answer is 3 as shown it is N2 + 3H2O ------- 2NH3

A carbon and oxygen b=light black and odour unpleasant c=become moist d=no effecte=carbon and 2molecule of oxygen

Limewater is the common name for a diluted solution of calcium hydroxide. Calcium hydroxide, Ca(OH)₂, is sparsely soluble in water. Pure limewater is clear and colorless, with a slight earthy smell and an alkaline bitter taste of calcium hydroxide.

Take these three solutions in three different beakers. when u pass light through three of them , light pases through suspension and colloid and ahow tyndall effect but it cant be seen in case of true solution. If u want to differentiate both of them again colloidal particles are smaller in size and appears to settle down but in suspension the size of particles is too large. and in true solution no any particle appears in the solution

in true solution solute and solvent get completely mixed but in colloid solute is more.

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The brown substance' X' is copper .When it is heated copper oxide is formed .

Hence compound 'Y' is copper oxide.

The reaction is as follows.It is a combination reaction.

2Cu + O2-----> 2CuO

If hydrogen gas is passed over heated copper oxide (CuO), the black coating on the surface turns brown as the reverse reaction takes place and copper is obtained.

The chemical reaction is as follows

CuO + H2------>Cu + H2O

The second reaction is called oxidation-reduction reaction or redox reaction.

As during this reaction the copper(II) oxide is losing oxygen and is being reduced. The hydrogen is gaining oxygen and is being oxidised.In other words, one reactant gets oxidised while the other gets reduced.

Chlorine gas reacts with lime water to form calcium oxychloride that is bleaching powder.

The chemical reaction is as follows -2Ca(OH)2 + 2Cl2 → Ca(OCl)2 + CaCl2 + 2H2O

Themodern periodic law statesthat physical and chemical properties of the elements are theperiodicfunction of the atomic numbers. The various elements with the similar properties repeat after certain regular intervals. This repetition occurs when you arrange the elements in order of their increasing atomic numbers.

Modern periodic table law stated that properties of elements are a periodic function of their atomic number.

Themodern periodic law statesthat physical and chemical properties of the elements are theperiodicfunction of the atomic numbers.

The various elements with the similar properties repeat after certain regular intervals.

This repetition occurs when you arrange the elements in order of their increasing atomic numbers.

In chemistry and physics, Dalton's law states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.

bhai language to samj nahi aati

नाइट्रिक अम्ल (Nitric acid) (HNO3), एक अत्यन्त संक्षारक (कोरोसिव) खनिज अम्ल है। इसे एक्वा फ्रोटिस (aqua fortis) और 'स्पिरिट ऑफ नाइटर' भी कहते हैं। कीमियागरों को नाइट्रिक अम्ल का ज्ञान था, जिसे वे ऐक्वा फॉर्टिस के नाम से पुकारते थे। प्रसिद्ध कीमियागर जेबर ने नाइटर (niter) और ताम्र सल्फेट, (Cu SO4) तथा फिटकरी के साथ आसवन से प्राप्त कर इसका वर्णन किया है। भारत में शोरा तथा नाइट्रिक अम्ल का १६वीं शताब्दी में ज्ञान था। शुक्राचार्य के ग्रंथ शुक्रनीति में बारूद बनाने के लिए इसे उपयोग का वर्णन हुआ है। उड़ीसा के गजपति प्रतापरुद्रदेव द्वारा लिखित ग्रंथ 'कौतुकचिंतामणि' में यवक्षार (साल्टपीटर) का उल्लेख है। इसके अतिरिक्त सुवर्णतंत्र ग्रंथ (लगभग १७वीं शताब्दी में लिखा गया) में 'शंखद्राव' का वर्णन है, जो शोरे और नमक के अम्लों (HCl) का मिश्रण था। आईने अकबरी ग्रंथ में रासी (शोरे के अम्ल) का वर्णन है, जिसका चाँदी को स्वच्छ करने में उपयोग हो सकता था। वर्ष १६४८ ई. में ग्लॉबर (Glauber) ने नाइटर पर विट्रियल तेल (oil of vitreol) की अभिक्रिया द्वारा संद्र नाइट्रिक अम्ल का निर्माण किया। कैवेंडिश ने १७७६ ई में इसका संघटन ज्ञात किया। वायुमंडल में नाइट्रिक अम्ल विद्युत विसर्जन (electric discharge) द्वारा सूक्ष्म मात्रा में बनता रहता है, जो वर्षाजल में घुलकर पृथ्वी पर आता है। मिट्टी में उपस्थित कार्बनिक पदार्थों के ऑक्सीकरण द्वारा भी नाइट्रिक अम्ल बनता है। यह अम्ल अनेक नाइट्रेट पदार्थों के रूप में भूमि में संचित होकर पौधों के उपयोग में आता है। नाइट्रेट यौगिकों का प्रमुख स्रोत चिली देश है। भारत की साँभर झील में पोटासियम नाइट्रेट पाया जाता है। भारत के कुछ राज्यों में मिट्टी के साथ मिला हुआ पोटासियम नाइट्रेट पाया जाता है। इससे एक समय प्रचुर मात्रा में शोरा (व्यापारिक पोटासियम नाइट्रेट) तैयार होता था। .

Hydrogen is the smallest atom of all as it is having just one electron. So it is the smallest atom.

Oxidation of layer of statue!

Many people wear copper bracelets because of their beauty and alleged healing properties, butafteryou wear one fora while, the skin beneath the copper turns green. Thecolorchange occurs as a normal reaction to the prolonged copper exposure on the skin, typically caused by oxidation

The element K is in I group of Mendeleev's periodic table in which general formula is R2O. So formula of oxide of K is K2O2.element C is in group IV of Mendeleev's periodic table .General formula of oxide is R2O so formula of oxide is CO23. Similarly oxide of Al is Al2O3.4. Formula of Si oxide is SiO2.5. oxide of Ba is BaO

answer is Na+ because it donate an electron from outer most shell and remaining are 10 electrons therefore weight is lowest for sodium ion.

But magnesium and aluminum also have 10 electrons

please explanation but I confused Al or Mg

AI but me too m confused bro

equivalent weight of Na2so4 is = m.wt/v.f

and its V.f = 2

so, equivalent weight = 142/2 = 71

The correct answer is (d) 10

Red litmus becomes blue when it comes in contact with bases. Blue litmus becomes red when it comes in contact with acids. The pH value of a base solution is more than 7.

Since red litmus becomes blue when it comes in contact with the mentioned solution, its pH value may be 10.

Themodern periodic law statesthat physical and chemical properties of the elements are theperiodicfunction of the atomic numbers. The various elements with the similar properties repeat after certain regular intervals. This repetition occurs when you arrange the elements in order of their increasing atomic numbers

The modern periodic law was proposed by Moseley. Thus the modern periodic law can be stated as:

"The chemical and physical properties of elements are the periodic functions of their atomic numbers and electronic configurations."

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a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

When ferrous sulphate is heated strongly, the following reaction takes place2FeSO4.7H2O → Fe2O3 + SO2 + SO3.

While SO2 and SO3 evolve out as gases, theresidue left is the solid - Fe2O3 (ferric oxide) - which is a reddish brown powder.

Chemical Science is the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. It is also known as Chemistry.

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Thermosetting plastics

tq

Here, at 50°C, the solid solute obtained is = 50 gmSince, we had the saturated solution = 100 gmIt means there must be 50 gm of water in the saturated solutionHence, solubility of solute = (weight of solute in saturated solution/ weight of solvent in saturated solution ) x 100So, at 50°C before the evaporation,solubility = (50/50 ) x 100 = 100

As the temperature increases, the solution becomes unsaturated. Thus, more sugar can be dissolved.

Thanx

please send me full calculation of that

mass of solute =36gmass of solvent=100g mass of solution=mass of solute+mass of solvent36+100 =360concentration=40/360*100 ==11.1

A solution has two components. The component of a solution that is present in larger quantity is called the solventand the component present in smaller quantity is called as solute.Solvent +Solute = SolutionExample: Tincture Iodine.Intincture of iodine, theiodineis thesoluteandalcoholis thesolvent.

Types of Solutions based on Concentration:

Saturated solutionA solution which will not dissolve anymore solute is called a saturated solution.

Unsaturated solutionA solution in which more of the solute will dissolve is called an unsaturated solution.

Thus inorder to conver a saturated solution into anun-saturated solution is by dilution process.On dilution the concentration of solution decreases thus it requires more salt to be added to it to make it as saturated solution .