Explore topic-wise InterviewSolutions in Current Affairs.

ATOMIC MASS‎: ‎44.95591 atomic mass UNITS

NUMBER of Neutrons‎: ‎24

Number of Protons‎: ‎21

Number of Electrons‎: ‎21

This QUESTION in WRONG

Oogjfjdhgkskgdjhvcshfh

· Electron Configuration
· Quantum Number
· Theory of Atom
· ATOMIC Number and Atomic Weight
· EXAMPLES on SOLIDS, Liquids and Gases

Additional Categories

· Chemistry (Basics)
· Acid and Bases
· Limit test
· Chemical Reaction
· Volumetric Analysis
· Electrolytes
· GRAVIMETRIC Analysis

· ERRORS in Analysis
· Thermodynamics
· Solids, liquids and gases

It is the CORRECT ANSWER......... AISHRAJPUT

They will be SEPARATED by DIFFERENCE in their BOILING POINTS by DISTILLATION.

In iron: Compounds.
…group of INDUSTRIALLY important com

pounds: ferrous chloride, FeCl2; and ferric chloride, FECL3. Ferrous chloride is obtained as yellow-greendeliquescent (moisture-absorbing) CRYSTALS by PASSING dry hydrogen chloride gas over red-hot iron.

hope it helps

The NTP VOLUME of GAS is EQUAL to 22.4 LITRES.

Answer:

This shows that PARTICLES of MATTER have SPACES between them. When sugar is added to the water, the sugar the particles adjust themselves in the SPACE between the water particles. Hence, we can say that particles of matter have space between them.

Hope this will HELP you.

All the best

For this we use the Rydberg formula (generalized Balmer series formula).

    1/λ = 4/B (1/2² - 1/n²) =  R (1/2² - 1/n²)
       R = 1.097 *10⁷ m⁻¹
    Ionization energy corresponds to λ = 1/R = 91.1 nm
    Energy = h c/λ = 21.92 * 10⁻¹⁹ J /atom
                  = 1312 KJ/mol   by multiplying with Avogadro number

======
Balmer series spectral lines formula :(for transitions from n = 2)
 
   λ = B * n² / (n² - 2²),              B = 364.5 nm
       for wavelength of radiation emission for a   n -> 2 transition.

For ionization, an electron changes from n=2, to n = ∞.

Hence,  ionization energy = E = h c /λ 
    = 6.62 * 10⁻³⁴ * 3 * 10⁸ / 364.5 * 10⁻⁹  J
    = 5.45 * 10⁻¹⁹ J / atom or electron
    = 328.4 kJ / mole    (by multiplying with Avogadro Number).

This VALUE seems to be 1/4 of the 1312 kJ/mole value observed actually (for transition from n = 1 to infinity).

=====
Ionization energy is found also found by finding the frequency series limit of the Hydrogen spectrum. It requires extrapolation of the frequency & energy.

   It is found that the frequency is = 3.28 * 10¹⁵ Hz at the limit that corresponds to the ionization. Because above this frequency there are no emissions or absorptions.

   Ionization energy = 3.28 * 10¹⁵ * 6.62 * 10⁻³⁴ * 6.022 * 10²³
                                 = 1308 kJ/mole

Air ,soil,water
hope it HELPS PLS MARK as brainliest

There are many types like HAND PICKING of STONES distillation sadimendation decandation EVAPORATION crystallisation ETC

The main FACTOR for RESPONSIBLE for the evaporation are temperature , evaporation DEPENDS on the SOLVENT and solution

Because it is a GOOD CONDUCTOR of ELECTICITY.....

You can DESCRIBE the MOTION of an OBJECT buy it position ,speed,direction and acceleration. an object is moving if its position CHANGES with respect to a fixed point

The HANDLE needs to be made of something that does NOT conduct heat very well. A metal handle WOULD become red-hot.

Pressure COOKER HANDLES are made up Bakelite; a THERMOSETTING plastic. Bakelite is used because it has heat-resistant properties and is an electrical insulator.
that is why the handle of cooker is not made by pet

.Here is your ans.....☺️☺️☺️

________________________________________________________________________

Hydra are known for their REGENERATIVE capabilities. Most of their body cells are stem cells . These cells are capable of division and differentiation into any cell type in the body.
In humans such cells are present only in the first few days of embryonic development.

sry but mujhe us cell KA name nhi pata.

thanks for watching ...

PLEASE MARK ME AS A BRAINLIST...
and SAY thanks in my all questions ..☺️

(NH4)2SO4 = 36 + 32 + 64 =132

no. of MOLES = wt/mol.wt = 66/132 = 0.5

1 molecule contains 2 atoms of nitrogen.

no. of ATOMIC moles of nitrogen = 2 x 0.5 = 1 mole.

we know that 1 mole contains 6.023 x 10^23 no.of atoms of N

A DOUBLE displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reactionwhere TWO COMPOUNDS REACT, and the positive ions (cation) and the negative ions (anion) of the two reactants switch PLACES, forming two new compounds or products.

Hii
thank you for GIVING question
please GIVE me a BRAINLIEST answer

The noble gases have no electronegativity because they don't form bonds .When two atoms have EQUAL electronegativity they BOND covalently ,that is they share the electrons .Some elements on the other HAND will seek the stable configuration by moving electrons from one ATOM to another .

⬇️⬇️⬇️⬇️YOUR ANS⬇️⬇️⬇️⬇️

Atomic mass of H = 1 u
atomic mass of O = 16 u
molecular mass of H2O = 1×2+16 = 18 u
molar mass of H2O = 18 g

no. of MOLES = given mass/molar mass
= 36/18
= 2 moles.

hope it HELPED ☺

Goof AFTERNOON friend...


suppose there are n MOLECULES of CL2.

therefore the NUMBER of moles of cl2 are

moles=n/(6.023x10^23)

therefore now the mass is equal to

mass=moles*71

thats your answer do the math

directly mass=n*71/(6.023x10^23)

I think you have got it bro

Hey mate here is your short and understandable answer.....



The MAIN difference between mesons and BARYONS is that mesons have integer spin (thus are bosons) while baryons are fermions (half-integer spin). Because mesons are bosons, the PAULI EXCLUSION principle does not apply to them.


hope it helps you.....

mark it brainliest if you like :-)

Hey mate

here is ur answer

Yes, a DISPLACEMENT REACTION is ALSO a REDOX reaction, as it is always accompanied by oxidation-reduction. 


hope it helos u

#AARCHI

No......................... .

Hydrogen peroxide kept in COLOURED bottles because it can react with the sunlight and perform PHOTOCHEMICAL DECOMPOSITION

1 hexene to 3 octyne is GIVEN as attachment

3 octyne on REDUCTION with H2 gives 3 octene.

Only HYDRIDE and OXIDE ki thermal stability down the GP decrese KRTI hai baki sb ki increase krti hai ...as LIKE carbonate

LIQUIFIED PETROLEUM gas
LPG...........

Graphite is an ELECTRIC conductor, consequently, useful in such applications as arc LAMP electrodes. It can CONDUCT electricity due to the vast electron delocalization within the carbon layers (a phenomenon CALLED aromaticity). These valence electrons are free to move, so are ABLE to conduct electricity.

Ipso substitution: Substitution of an aromatic RING SUBSTITUENT (i.e., an attachment other than hydrogen). The mechanism is usually nucleophilic aromaticsubstitution, but ipso substitutionby an ELECTROPHILIC aromaticsubstitution mechanism is also possible.

Hope it's help you
Please mark me in brain LIST answer

It is VINEGAR MEANS ACETIC ACID

CH3COOH

Due to absorption ..MARKS of chalk FILL the gap of black board SMALL POINTS..

Answer: The MASS of 1 atom of the ELEMENT will be 2.4088

Explanation:

We are asked to convert the units of mass in the given question.

We are given:

Mass of one atom of an element =

For the CONVERSION to 'amu', we use the conversion factor:

1 GRAM is equal to amu.

So, will be equal to

Hence, the mass of 1 atom of the element will be 2.4088

To calculate this, the FIRST step is to determine the number of PROTONS in each atom of the ION. You can use their atomic number to FIND the number of protons. If the number protons and electrons are equal there is no charge, so the next step is to determine how many electrons to add or remove to the number of protons

A collision is an event in which two or more bodies exert forces on each other for a relatively short time. Although the most common COLLOQUIAL use of the word "collision" refers to INCIDENTS in which two or more objects collide with great force, the SCIENTIFIC use of the word "collision" implies nothing about the MAGNITUDE of the force.