Explore topic-wise InterviewSolutions in Current Affairs.

it can be calculated by APPLYING the formula

u=√n(n+2)

where n=no of unpaired electrons

Cr2+ has 4 unpaired electrons

u=√4*6

=√24 BM

Hope this HELPS

ong>Answer:

plzzzz FOLLOW me and mark me BRAINLIST PLZZZZZ

BaCO3 is more thermally stable because polarising power of Ba2+ is less than other ALKALINE earth metals and thermal stability is inversely proportional to polarising power of action when compound containing polyatomic ANION and here carbonate is polyatomic anion.

Acid rain, or acid deposition, is a broad term that includes any form of PRECIPITATION with acidic components, such as sulfuric or NITRIC acid ...

EXPLANATION:

hope it helps u

ong>Answer:

a) atomic number of ELEMENT REFERS to the number of PROTONS present in the nucleus of the cell

b) 1)no. of protons=17 no. of electron=17 no. of nutrons=18 atomic no.=17 MASS no.=35

2)no. of protons=17 no. of electron=17 no. of nutrons=20 atomic no.=17 mass no.=37

c)1) electronic configuration of cl=2,7

2)electronic configurations of cl-=2,8

1.84 m

Explanation:

step 1 : Find MOLES of solute.

The solute in this case is urea. Let us find moles of urea.

MOLE = gram/molar mass

Molar mass of urea is 60.1 g/mol

We have 10 grams of urea.

Let us plug in these values to find moles.

Mol  = 10g /60.1 g /mol = 0.166mol

We have 0.166 mol urea.

Step 2 : Find mass of solvent

Water is solvent here .

The mass of solution is given as 100 g.

Mass of solution = mass of solute + mass of solvent

100 g = 10 g + mass of solvent

mass of solvent = 100 g - 10 g = 90 g = 0.09 kg

Step 3 : Use molality formula

The molality of a solution is calculated USING following formula

m = solute/solvent = 0 .166mol / 0.09kg

 Molarity                                     =1.84m

Answer : The molality of the solution is 1.84 m

Mark me as brainliest.

plzz

ong>ANSWER:

Displacement reaction is a chemical reaction in which a more reactive element displaces a LESS reactive element from its COMPOUND. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with COPPER sulphate solution.

metal plate a a and b e which an ELECTRIC potential is APPLIED in such that a a positive and negative the oil drop is found subsequent at it the distance of of the position of the oil change 2 Mili metre from B is a negative charge is 5ml there there is the sudden drop rises on position that changes the drop position is metal plate b

ong>ANSWER:

Hey buddy!!

The NUMBER of ATOMS in Oxygen will be: 2x

Explanation:

Look, Sulphur atomic mass is 32g

So, The number of atoms in Sulphur in 32 G of Sulphur =  NA = x

Now, the Atomic mass of Oxygen= 16g

So, in 32g(2 x 16g), the number of atoms of Oxygen = 2 x NA = 2x

Here, NA= Avogadro's no.= 6.022x10^23

#Hope it helps buddy:)

#Stay safe:)

ong>Answer:

Boric acid dissolves in water: 1 gram in 18 mL cold water, in 4 mL boiling water, 6 mL boiling alcohol.

Explanation:

I give you answer now it is your duty to mark me as a brianliest please follow me on brainly THANKS my 10 answers to

CHEMICAL changes..... Please mark me as the brainliest and do follow me

please put formula of 6.02×10^23

ong>Answer:

Explanation:

When the value of PRINCIPAL QUANTUM number n is 3 the permitted value of azimuthal quantum numbers l and MAGNETIC quantum numbers 'm' are l = 0, 1, 2 m = 0,+1,0,-1,+2,+1,0,-1,-2

For a GIVEN value of the principal quantum number, the azimuthal quantum number l can values 0,1 ,2....n-1.

For a given value of azimuthal quantum number, the magnetic quantum number m can take values −l,.....−2,−1,0,+1,+2.....+l

How satisfied

d )is your answer

MAYBE it's HELPFUL for you

DIFFUSION and Brownian MOTION

MAYBE your questions is incomplete PLSS CHECK

ong>ANSWER:

C3H8O

Isopropyl alcohol/Formula

Explanation:

Aldehyde and KETONE form alcohol with the Grignard reagent.A s a secondary alcohol is formed with a 3 carbon chain A is propanal.

2-butanol is secondary alcohol and on dehydration, with H

2

SO

4

will form butene. the major product is B, trans- 2-butene which forms addition product bromine2,3-bromobutane (C). This forms 2-bromo but 2-ene (D) on reaction with alcoholic KOH.

ong>Answer:

Periodic treands are are specific pattern in the properties of chemical element that are revealed in the periodic table of elements.Major periodic treands include electronegatively IONIZATION energy,electric affinity, atomic radii,ionic RADIUS, METALLIC charecterand chemical reactivity.

HOPE IT HELPS YOU

MARK AS BRAINLIEST ANSWER....

Im confused

Explanation:

The number of nitrogen and hydrogen atoms are equal in both the reactant and product sides. This is because of law of conservation of MATTER. This is DONE by balancing the equation

N2 + H2 = NH3

NATURE FULFILS and motivates. Nature whispers and commands. Are you listening ???????? When I do ,it COMPLETELY leaves me in .....

.....

The elements of same group have SIMILAR chemical properties because they have same number of VALENCE electrons

hope it will help you

please mark BRAINLIEST

ong>Answer:

what??????

Explanation:

html > < head > < STYLE > h1{ text-transform:UPPERCASE; margin-top:90px; text-align:center; font-family:Courier new,monospace; border:3px SOLID rgb(60,45,8); border-top:none; width:67%; letter-spacing:-6px; box-sizing:border-box; padding-right:5px; border-radius:6px; font-size:35px; font-weight:bold; } h1 SPAN{ position:relative; display:inline-block; margin-right:3px; } @keyframes shahir{ 0% { transform: translateY(0px) rotate(0deg); } 40% { transform: translateY(0px) rotate(0deg); } 50% { transform: translateY(-50px)rotate(180deg);; } 60% { transform: translateY(0px)rotate(360deg);; } 100% { transform: translate(0px)rotate(360deg);; }} h1 span { animation: shahir 3s alternate infinite linear; } h1 span:nth-child(1) {color:red; animation-delay

n=given MASS÷molecular mass

molecular mass of H2O is 2+16=18 g

moles=0.6

0.6=given mass÷18

0.6×18=given mass

10.8

ong>ANSWER:

.12 in overall hope you are fine

Ammonia is the most BASIC compound

sorry L don't know question

PLEASE follow me

its a WRITE answer of your QUESTION

Fractional distillation is a technique used to separate impurities. - Usually impurities have lower melting/boiling POINT, THUS evaporates earlier can be removed. - However, purecompounds have high melting/boiling POINTSAND evaporates very slowly. - This is how wecan CHECK purity of compounds

ong>Explanation:

Acidic Salt: A normal salt which is FORMED by the neutralisation of a strong acid and weak base is called acidic salt because its AQUEOUS solution TURNS blue litmus red. Examples: The COMPOUNDS like FeCI3, ZnCl2, HGCL2, Fe2 (S04)3, HgS04 etc are acidic salts

gold

Explanation:

HOPE this HELPS you

ong>Explanation:

So... for the element of CHLORINE, you already KNOW that the atomic NUMBER tells you the number of electrons. That means there are 17 electrons in a chlorine atom. LOOKING at the picture, you can see there are TWO electrons in shell one, EIGHT in shell two, and seven in shell three.

ong>Answer:

The former EFFECT CAUSES a decrease in the shear STRESS while the latter causes it to INCREASE. The result is that liquids show a reduction in viscosity with increasing temperature. With high temperatures, viscosity increases in gases and decreases in liquids, the drag force will do the same.

Hope it helps..

ong>Answer:

a) H2 O(steam)+ Fe(iron) PRODUCE iron oxide)

B) Al+O2 produce Al2O2

ong>Explanation:

Example

Sodium hydroxide gives HYDROGEN gas and sodium ZINCATE when reacts with ZINC metal.

Hope it HELPS uhh ❤️

ong>Explanation:

1.

(1) pcl5= phosphorous penta chloride

(2) sF6= sulphur hexa FLOURIDE

(3) Iodine hepta flouride

2. axial BONDS are VERTICAL bonds and equitorial bonds are horizontal bonds.

horizontal bonds are shorter than vertical bonds.

so, so, axial bonds are LONGER when COMPARED to equitorial bonds.

3

Explanation:

...................

ong>Explanation:

2Al+

2

3

O

2

→Al

2

O

3

2

3

molO

2

REQUIRES 2 molAl

1mol O

2

requires

3

2×2

molAl

2

1

mol O

2

requires

3

4

×

2

1

molAl

=

3

2

mol

=

3

2

×27=18gm aluminum.

Hence, option B is CORRECT.

ffjsguuhfdfhjdgudhkjd

ong>Answer:

Lust is a psychological force producing intense desire for an object, or CIRCUMSTANCE fulfilling the EMOTION while already having a significant other or amount of the desired object. Lust can take any form such as the lust for sexuality (SEE libido), love, MONEY, or POWER.

anticid POLYMER

PLS MARK brainliestc

sorry MATE... I don't KNOWTHE answer...

ong>ANSWER:

I will give you a answer to the QUESTION but you should give me a BRAINLIEST

ong>Answer:

Elements of group 17 are monovalent because they have 7 ELECTRONS in valence SHELL and monovalent to COMPLETE noble gas configuration

The decreasing order of chemical reactivity is given below.

(most active) NA > CA > Mg > Zn > Fe > CU (least active)

Please mark me as Brainliest...

ong>Answer:

26

Explanation:

U just simply DIVIDE 104 by 4 to GET the answer that is 26.

hope it helps you. mark as brainliest

BTS LIVE FOREVER AND EVER

y can't UNDERSTAND MARK me as a BRAINLEST ANSWER

sorry can't understand mark me as a brainlest answer

sorry can't understand mark me as a brainlest answer

ong>ANSWER:

NA2SO4 +BaCl2 - BASO4 + 2NaCl

ong>Answer:

Double decomposition: This is a type of chemical CHANGE in which two COMPOUNDS in a SOLUTION react to form two NEW compounds by MUTUAL exchange of radicals.

The shielding effect SOMETIMES referred to as atomic shielding or electron shielding DESCRIBES the attraction between an electron and the nucleus in any atom with more than ONE electron.

Hope it works..✌

please mark it as brainliest