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Ethanoic acid or acetic acid freezes easily at the temperature of 290 degree kelvin and appears as the glacier.

Because of this freezing property it is known as glacial acetic acid.

NaOH reacts with HCl : NaOH + HCl → NaCl + H2O 1 mol NaOH reacts with 1 mol HCl

Mol HCl in 9.9mL of 1.0M solution = 9.9/1000*1.0 = 0.0099 mol HCl Mol NaOH in 100mL of 0.1M solution = 100/1000*0.1 = 0.01 mol NaOH On mixing the 0.0099 mol HCl will be neutralised and 0.01 - 0.0099 = 1*10^-4 mol NaOH dissolved in 109.9mL solution Molarity of NaOH solution = (1*10^-4) / 0.1099 = 9.099*10^-4M pOH = -log ( 9.099*10^-4) pOH = 3.04 pH = 14.00 - pOH pH = 14.00 - 3.04 pH = 10.96

Wateris a colorless and odorless s

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the total number atoms is 56

the total number of atoms is 56

NH3 has a pyramidal shape. Here, the central atom N (nitrogen) has 3 bond pairs and one lone pair. Hence, it is sp3 hybridised.

It will have a tetrahedron shape but one of its ends will be occupied by a lone pair which does not contribute to the structure. Therefore, it looks like a pyramid.

Also, it will have a bond angle less than that of what a tetrahedron has. This is because the lone pair repels all the bond pairs this results in the reduction of bond angle.

Following is the naswer to above question

2H2 (g) + (5/2)O2 (g) ----------->CO2 (g) + H2O

Heat of Reaction (Rxn) = -1299kJ/mol

Standard formation [CO2 (g)]= -393.5 kJ/mol

Standard formation [H2O (l)] = -285.8 kj/mol

Hence the heat of formation of the reaction is 226 kJ/mol

SO4 has a charge of -2so [Fe(H2O)5NO] has a charge of +2NO has -1 stateso Fe should be +3as +3-1=2so, oxidation state of iron is +3

Equilibrium for the expression would be: [C]/([A]³[B]³)

Dinitrogen tetraoxide converts into nitrogen dioxide at high temperatures. Therefore it is an endothermic process. Therefore change in enthalpy is positive

(i)The brown gas X is nitrogen dioxide, NO2.(ii) 2Cu(NO3)2(s) --heat-->2CuO(s) + 4NO2(g) + O2(g) (iii) Thermal decomposition.(iv)pH< 7Reason : NO2 dissolves in water to form acidic solution (pH range below 7).

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When left open in air for a long time a vessel of copper metal reddish brown in colour combines with carbon dioxide and moisture to form green coating of basic copper carbonate CuCO3.Cu(OH)2on the surface of the vessel.

Copper on reaction with dil. H2SO4forms blue coloured solution of copper sulphate (CuSO4)and CO2gas which is colourless of odourless and produces a brisk effervescence.

CuCO3.Cu(OH)2decomposes to give CuO which is a black coloured oxide.

Therefore, X is CuCO3.Cu(OH)2, Y is CuO, Z is CO2.

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option c is correct beacuse the principle quantum number of mg is 3 and as it belong to s block so the azimuthual quantum number for mg is 0 and for magnetic quantum number is also 0

Aerosol contains small particles of liquid or solid dispersed in a gas. Eg: Dust

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The particles of solid can have three dimensional arrangements

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The stain of curry on a white cloth turns reddish brown when soap is rubbed on it because curry contains turmeric which is a indicator and soap is basic in nature. So, soap is reacting on curry (turmeric) which turns reddish brown in colour.

When the white cloth is washed in water then it turns yellow because water is neutral and the curry contains turmeric which is a indicator. The water turns turmeric back to yellow.

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i) The reddish brown coloured metal is copper metal (Cu).When copper metal is heated in air, it forms black coloured compound. This black coloured compound is copper oxide or copper (II) oxide (CuO).2Cu + O2-------heat-------> 2CuO

ii) CuO + H2 ------------->Cu+H20

Thestain of curry on a white clothturns reddish brown when soap is rubbedon it becausecurrycontains turmeric which is a indicator andsoapis basic in nature.

When thewhite clothis washed in water then it turns yellow because water is neutral and thecurry contains turmeric which is a indicator.

I)X-copper nitrate Cu(NO3)2Y-nitrogen dioxideZ-hydrogen sulphide2)2Cu(NO3)2+heat--->2CuO+4NO2+O23)Cu(NO3)2+H2S---->CuS+2HNO3

what is this '>' ?

List of some useful traits improved crops are as follows-

Higher productivity.

Wider adaptability.

Required agronomic characteristics.

Change in maturity.

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I)copper hydroxide Cu(OH)2ferric hydroxide(Fe(OH)3)aluminium hydroxide(Al(OH)3)

ii)Ammonium chloride

iii)Lead Chloride

ice melts so it becomes cool

the temperature of ice is cold so the water will become also cold.

ice temperature is cool and water temperature is normal so ice melt water and normal water became cold

because the ice matter release and combine with water

because ice very cold

the temperature of ice is cold so the water will also be cold.

as the ice temperature is cold so water will also become cold

ice temperature is cold and water temperature is hot Or cold

the tempreature of ice 0 and water is 100 that's why it become cold

BECAUSE THEIR IS A LOT OF VACANT SPACE SO THE TEMPERATURE OF ICE IS COLD AND SO THAT THE WATER WILL BECOME COLD

the temperature of ice is cold but the water is hot

because 1g of ice observe 336 joule's of heat energy from the surrounding

Ans :- The main difference between synthetic detergents and soap is the ingredients used during manufacturing. While synthetic detergents are made from petroleum products, manufacturers make soap from lye and natural fat. Unlike soaps, synthetic detergents contain strong antibacterial agents and preservatives.

Another difference is in the way soap and detergents react with hard water. Because hard water contains high concentrations of minerals, these impurities remain on dishes, surfaces and fabrics when washed with soap, causing discoloration. However, synthetic detergents clean fabrics, dishes and surfaces thoroughly, even when hard water is used.

Unlike natural soap, a synthetic detergent breaks up oil and dirt molecules in hard water. It then removes and washes them away, together with dirt from the object being washed. Synthetic detergents, such as those used in dishwashers and washing machines, are stronger than natural soap. In this regard, strong detergents can cause skin irritations and allergic reactions on people’s bodies.

Molar mass NH3 = 14+3 = 17g/mol5.65g = 5.65/17 = 0.33mol NH3

1mol = 6.022*10^23 molecules0.33 mol = 0.33*6.022*10^23Number of molecules = 2*10^23 molecules NH3

first case assuming vessels different if vessels are made up of different matters then we cant say anything that which one will cooled faster because radiation part will matter here

other case

assuming vessels same

as per Newtown law of cooling temperature difference will be directly proportional to time taken to cool

thus 60°c will take less time than 80°c vessel

water has fixed volume water flow freely

Due to the intramolecular force Hydrogen combine with oxygen atom at the angle of 109.5°Due to the angle the water is in liquid condition at 25°c.At 0°water in solid state and 100°c the water is in gas state.

Question you have submitted is incomplete. Please post a complete question.

I want to know the name

since it has 3 carbon atoms and a double bond . So its name is Propene

c3h6 hii. yaha. Mara hutar. ha

Chemical Name : 2-Methoxypropane

and functional group is??

FUNCTIONAL GROUP OF IT

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side. ... The first chemical equation was diagrammed by Jean Beguin in 1615.

2KMnO4+ 3C2H5OH → 2MnO2+ 3CH3CHO + 2KOH + 2H2O

when temperature increases in a particular place then evaporation also increases they r directly proportional . OPTION (b) is correct

B) is correct answer

true,kinetic energy increases with increasing the temperature343 K into celsius unithence0°C =273Khence 343K =100°c

These are often positive integers, but they may also be zero, fractional, ornegative.

The naturally occurring elements or compound of metals present in the earth crust are called minerals. Ores are those minerals from which a particular metal can be extracted profitably.

Impurities dissolved in water increase its conductivity because pure water does not conduct electricity it is require a medium with through conduct electricity.

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2,2- dichloropropane

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