Explore topic-wise InterviewSolutions in .

ANSWER:In AVAGADRO LAW VOLUME is constant

Explanation:

PV=c

PV=nrt=c

P1V1=P2V2=c

Therefore ,volume is constant.Hence,it OBEYS avagadro’s law

*Gases are composed of a large number of particles that behave like hard, spherical objects in a state of constant, random motion.

*These particles move in a straight LINE until they collide with another PARTICLE or the walls of the container.

*These particles are much SMALLER than the distance between particles. Most of the volume of a gas is therefore empty space.

*There is no force of ATTRACTION between gas particles or between the particles and the walls of the container.

*Collisions between gas particles or collisions with the walls of the container are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the container.

*The average kinetic energy of a collection of gas particles depends on the temperature of the gas and nothing else.

ANSWER:

by the PROCESS of CONVECTION

Answer:

Once added to sliced APPLES, the ascorbic ACID, or vitamin C, in lemon juice creates a BARRIER between the oxygen and the polyphenol oxidase. Until the lemon juice has evaporated or been COMPLETELY absorbed, the oxygen reacts with the ascorbic acid, PREVENTING the apple from turning brown.

plzzz mark the answer brainliest! ! ! ! ❤❤✌

ANSWER:

sorry i don't KNOW and thank me later on i am a KID

ANSWER:

ch3coo negative ion will move towards anode

Explanation: as anode is always positive so neg part of sodium acetate will move towards anode and oxidation will TAKE place at anode .i.e. acetate ion will lose 1 electron and change to ch3coo (no CHARGE) and this ch3coo will convert into ch3 and co2 and also ch3 is not STABLE alone so will combine with another ch3 and form ETHANE.

Answer:

To CONVERT 300 Kelvin to Celsius

we use formula =300kelvin -(273)

=27 Celsius scale

pls mark me as brainlist I REALLY NEEDED support ^_^

Explanation:

KOH in methanol will hydrolyze the glycine. -OH is a better nucleophile than -OEt, and once it is attached, it is deprotonated by the base and no longer undergoes substitution. I don't believe you can make esters with hydroxide bases in any solvent system.

Also, although the extraction would work with most simple carboxylic acids, I don't believe you would be able to extract your glycine from an acid SOLUTION using ethyl acetate. Glycine is an amino acid, and at pH 1 that AMINE would be FULLY protonated.

You could try adding HCl in either methanol or DIOXANE to your solution, calculated to just neutralize the KOH that you started with. The solubility of KCl in methanol is much LESS than the solubility of KOH in methanol, and most of it should precipitate. The when you strip down the methanol, you would be left with glycine contaminated with a small amount of KCl.

ANSWER:

hope the answer will HELP you

EXPLANATION:

MARK the answer brainliests please

Answer:

Explanation:The balanced CHEMICAL EQUATION is

1. 2 NaOH+H₂ SO4→Na2SO4+2H2O

2. Zn+2 HCl→ZnCl2+H2

Answer:

8 is the PH of the IRON because of the it is BASIC in NATURE

ANSWER:

ADHUNIK PARMANU SIDDHANT

Answer:

Explanation:

In the corrosion PROCESS, IRON metal acts as the anode in a galvanic cell and is oxidized to Fe2+; oxygen is reduced to water at the cathode. The relevant REACTIONS are as FOLLOWS: at cathode: O2(g)+4H+(aq)+4e−→2H2O(l)E°=1.23V.

Thanks ❤✔

ANSWER:

1. NA and k 2.F and Cl 3.Mg and Ca

Explanation:

it is because According to NEWLANDS Octaves Law , when elements are arranged on order of increasing atomic masses ,the properties of EVERY eighth element are a repitition of the properties of the FIRST element

ANSWER:

hydrochloric acid is USED for DIGESTION in our stomach

Answer:

mark my answer as brainliest then I will start FOLLOWING you

25 m and 100M

ANSWER:

+ 5

Explanation:

GIVEN :

Compound H₃P₂O₇⁻

We are ASKED to find O.N. of P :

We know :

O.N. of H = + 1

O.N. of O = - 2

Net charge on compound is - 1 .

Let O.N. of P be x .

( 1 × 3 ) + ( 2 × x ) + ( 7 × ( - 2 ) ) = - 1

3 + 2 x - 14 = - 1

2 x - 11 = - 1

2 x = + 10

x = + 10 / 2

x = + 5

Therefore , O.N. of P in H₃P₂O₇⁻ is + 5

Answer:

CHROMATOGRAPHY is based on the principle where molecules in mixture APPLIED onto the surface or into the solid, and fluid STATIONARY PHASE (stable phase) is SEPARATING from each other while moving with the aid of a mobile phase.

Answer:

B n.a. 110 and X ka 230

Explanation:

A and c ka MEAN le lo

x+z/2=240

plz MAKE my answer brainliest

ANSWER:

WILLIAM NICHOLSON was BORN on 13TH December,1753.......

Hey dear mate Here is ur answer :-

➡Carbon dioxide reacts with LIMEWATER (a solution of CALCIUM hydroxide, CA(OH)2), to form a white precipitate (appears milky) of calcium carbonate, CaCO3.

❇Adding more carbon dioxide RESULTS in the precipitate dissolving to form a colourless solution of calcium hydrogencarbonate.

❇Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)

❇CaCO3(s) + CO2(g) + H2O(l) → Ca(HCO3)2(aq)

➡This is used as a test for carbon dioxide.

✴When carbon dioxide is bubbled through limewater the limewater changes from colourless to milky.

Hope it helps u ☺❤

EXPLANATION:

its 1,1,2,3................

Answer:

WATER.....

EXPLANATION:

please MARK BRAINLIEST

Answer:

1 is CORRECT answer......

I HOPE HELP you.....

thanks........

no PROBLEM.............

ANSWER:

for the QUESTION the POINTS are LESS

Answer:

Aluminium METAL does not react with water under ORDINARY conditions because of the presence of a thin LAYER of aluminium oxide on its surface.

MARK THIS AS BRAINLIEST PLEASE

Answer:

1. Metals are good conductors of heat and ELECTRICITY but non-metals are poor conductors of heat and electricity.
2. Metals are ductile in nature i.e. it can be drawn into thin wires. But non-metals are not ductile.
3. Metals are malleable but non-metals are not malleable.
4. Also metals are sonorous(EXCEPT mercury ) in nature but non metals are not ......

there are more such points but I THINK it's sufficient......... if NEED more then I can list them too

.......pls mark it as BRAINLIEST

Hfjyfjtcjhfcvbgfcbjhcbkgcnjgbkgbk

ANSWER:

aluminium FOIL are used to pack MEDICINES

Answer:

The difference between the LFSE values in octahedral and tetrahedral geometries is referred to as Octahedral SITE Stabilization ENERGY (OSSE).

If the BIII ION has more CFSE gain in octahedral site than that of AII ion, a normal spinel structure is expected.

· inverse spinel structure is driven primarily by the crystal field stabilization energy (CFSE) of ions in the tetrahedral and octahedral sites.

ANSWER:

1. 62

2. 120

3. 286

Explanation:

HOPE the answer will HELP you

ANSWER:

Please GET it properly organised

Explanation:

Sucrose is a non reducing sugar

Answer:

SALT R is black in colour. On reacting with CONC. HCl, it liberates a PUNGENT GREENISH yellow gas which turns moist starch iodide PAPER blue black.

ANSWER:

Combustion of SUCROSE is GIVEN by the chemical EQUATION, C12H22O11 + 12 O2 ------> 12CO2 + 11 H2O...

please mark me as

ANSWER:

HEYYY MATE don't KNOW....

EXPLANATION:

REFER to the ATTACHED image.

Hope it HELPS you

____________________________________________

ᑫᑌᗴՏTIOᑎ ::::

Why are METALS good conductors of ELECTRICITY?

having trouble with your ANSWER?

here it is...!!

____________________________________________

Metals are good conductors of electricity because they contain free electrons. These free electrons move easily through the metal and conduct electric current. (1 mark QUESTION)

____________________________________________

#answer_with_quality ✔

Answer:

acetone is OBTAINED from grignard reagent by USING acetaldehyde.

for example:

1st STEP:

CH3_CO_H + CH3_Mg_Br → CH3_CHCH3_O_Mg_Br (in the presence of polar solvent)

2nd step:

CH3_CHCH3_O_Mg_Br → CH3_CHOH_CH3 + HO_Mg_Br (in the presence of H+ / OH-)

3RD STEP:

CH3_CHOH_CH3 + [O] → CH3_CO_CH3 + H2O (IN THE PRESENCE OF CU)

But this process is very expensive and UNRELIABLE. therefore it is not used to produce acetone which makes waste of time metarial

Answer:

if you mark the answer as brainliest then I will start FOLLOWING you.

Explanation:

When anhydrous ammonia COMES in contact with water, it forms an ALKALI that chemically burns animal tissue. The chemical burns into the body tissue unless it is diluted by large quantities of water.

ANSWER:

SO4^-2

Explanation:

HOPE the answer will HELP you

Answer:

mark my answer as brainliest and follow me PLZ.

Explanation:

The EXACT concentration of the solution is then determined by the method of Messinger and Vortmann, as FOLLOWS: ... of the filtrate by titration with standard thiosulfate solution. CALCULATE the iodine COMBINED with the phenol. This multiplied by 0.1235 is the amount of phenol in 10 cc.

αηѕωєя

Thus, your ANSWER is:-

________________

ELECTROSTATIC Dissipative Material (ESD) is a material that has a surface resistivity between that of a conductor and an insulator, USUALLY defined as between about 106 and 1012 O/.quadrature

Whereas, Formaldehyde is suspected of being a carcinogen, and MDF has some of the highest CONCENTRATION of urea-formaldehyde ADHESIVES out of all the engineered wood products that use it. Other products which use UF adhesive include hardwood plywood and particle board.

(a)Al2cl3

(B)CaCO3

(c)Na(OH)2

HOPE IT HELPS YOU

PLEASE MARK ME AS A BRAINLIEST ANSWER ☺️☺️

ANSWER:

CH2,C3H12,ETC

mark my answer as BRAINLIEST and FOLLOW me.

Explanation:

POLYETHYLENE terephthalate (SOMETIMES written poly(ethylene terephthalate)), commonly abbreviated PET, PETE, or the obsolete PETP or PET-P, is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, CONTAINERS for LIQUIDS and foods, THERMOFORMING for manufacturing

LIGHT rays before STRIKING the air bubbles have to travel through water. these light rays which strike the air bubbles at angles GREATER than critical angle for water-air SURFACE are totally reflected and it is because of these reflected rays that the air bubbles appear silvery.

xGangsterGirlsx

Explanation:

ATOMS are defined as the SMALLEST UNITS of matter that have the properties of an INDIVIDUAL element. Are there pieces of matter smaller than an atom? Sure. Atoms are made up of smaller and EVEN smaller particles of matter. However, those smaller particles don't have the properties of an element.

ANSWER:

CAESIUM is the CORRECT ANSWERS

ANSWER:

0.11

Explanation:

MASS by mass PERCENT of SOLUTION

= mass of SOLUTE ÷ mass of solution

=40/320+40

=40/360

=0.11 is your answer