Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

Aqua REGIA must be prepared and used in a fume HOOD. To prepare, combine three (3) PARTS of hydrochloric acid to one (1) PART nitric acid in a glass container. The hydrochloric acid must be measured into the glassware first, and then the nitric acid is slowly added. Never exceed 38% nitric acid.

Answer:

completely FILLED orbitals is the right answer

Explanation:

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ANSWER:

i do not KNOW answer SORRY.

Answer:

18

step by step explanation :

NUMBER of NEURONS 13-17 = 18 answer

Hope this answer HELP you

ANSWERED BY = @SOWAIBA

ANSWER:

if X = y then AUTOMATICALLY y = x.

Answer:

To crystallise copper sulphate, DISSOLVE it in water and add a small quantity of DILUTE SULPHURIC acid to prevent the hydrolysis of copper sulphte. The impurities left BEHIND in the solution are REMOVED by filtration. The filtrate is concentrated to the crystallisation point and then cooled

Answer:

A SKELETON equation is an equation that identifies the REACTANTS and PRODUCTS in a CHEMICAL reaction by their chemical formula but does not quantify them.

Answer:

A molecular SOLID is a solid consisting of discrete molecules. The cohesive forces that bind the molecules together are van der Waals forces, DIPOLE-dipole INTERACTIONS, quadrupole interactions, π-π interactions, hydrogen bonding, halogen bonding, London dispersion forces, and in some molecular solids, COULOMBIC interactions. Van der Waals, dipole interactions, quadrupole interactions, π-π interactions, hydrogen bonding, and halogen bonding (2-127 kJ mol−1)[10] are typically much weaker than the forces holding together other solids: metallic (metallic bonding, 400-500 kJ mol−1) ionic (Coulomb’s forces, 700-900 kJ mol−1),[4] and network solids (covalent bonds, 150-900 kJ mol−1).[4][10] Intermolecular interactions, typically do not involve delocalized electrons, unlike metallic and certain covalent bonds. Exceptions are charge-transfer complexes such as the tetrathiafulvane-tetracyanoquinodimethane (TTF-TCNQ), a radical ION salt.[5] These differences in the strength of force (i.e. covalent vs. van der Waals) and electronic characteristics (i.e. delocalized electrons) from other types of solids give rise to the unique mechanical, electronic, and thermal properties of molecular solids.

ANSWER:

All CHEMICAL changes are irreversible changes. Once the chemical properties of a SUBSTANCE are changed, it becomes another substance. THUS, it cannot return to its original STATE.

Answer:

Hope it helps :)

Explanation:

Molecular SOLIDS are solids that are essentially collections of molecules held TOGETHER by intermolecular forces (IMFs). ... Examples include ice (SOLID water), dry ice (solid CO2), solid iodine, and napthalene to name a few.

ANSWER:

ithink 16 is answer...........

Answer:

stated as that every particle attracts every other particle in the universe with a FORCE that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.[note 1] The publication of the theory has become known as the "first great unification", as it marked the unification of the previously described PHENOMENA of gravity on Earth with known ASTRONOMICAL behaviors.[1][2][3]

ANSWER:

BETA PARTICLE is the answer

ANSWER:

what to be identified...

EXPLANATION:

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ANSWER:

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Answer:

ANSWER

a) Increase in mass: IRON and conc. sulphuric acid

b) DECREASE in mass: Sodium carbonate crystals

c) No change in mass: Sodium CHLORIDE or table salt.

ANSWER:

B fxjysuryrutdhdjuykdutkiysttsyi6uet

ANSWER:

hi

Explanation:

it Don't MATTER to me and my MOM is GOING to be a JACKET

ANSWER:

HEY mate here is ur answer..

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ANSWER:

acidic,3.1-4.4 is the answer

When a photon (Y) strikes an electron (E), it knocks it loose and CREATES a PHOTOELECTRON. The photoelectric EFFECT refers to what happens when electrons are emitted from a MATERIAL that has absorbed electromagnetic radiation.

ANSWER:

the answer of this QUESTIIN is. S

Answer:

5c.m

EXPLANATION:

miterrrrrrrrrrrrrrrrr

EXPLANATION:

HCL is the ANSWER of the QUESTION

ANSWER:

mnfdcnlou

Explanation:

he xgskxbskx sxphxaqzj,FA,IAB

Answer:

MATHS m not interested Q ki muje NHI ataa

ANSWER:

ehsoajwhwowihejw I heard so many days will be offline viewing the attached file is scanned image in PDF format you are not the intended recipient you are not the intended recipient you are not the intended recipient or no hoo I will be very happy FRIENDSHIP day fro the question of how I can send it back ALOK Kumar Rollno 2 3 bhai aur bataye ki hum KUCH zyada se bhi zyada hi attitude me rahte the question

EXPLANATION:

SINCE H2 has MAXIMUM no. of moles, hence it has maximum no. of MOLECULES.

EXPLANATION:

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Explanation:

The general principle behind Slater RULE is that the actual charge felt by an electron is equal to what you'd expect the charge to be from a certain number of protons, but minus a certain amount of charge from other electrons. Slater rules ALLOW you to estimate the effective nuclear charge Zeff from the real number of protons in the NUCLEUS and the effective shielding of electrons in each orbital "shell" (e.g., to compare the effective nuclear charge and shielding 3d and 4S in transition metals). Slater rules are fairly simple and PRODUCE fairly accurate predictions of things like the electron configurations and ionization energies.

ANSWER:

PLEASE TELL the MAIN POINT

Answer:

In physics, WORK is the ENERGY transferred to or from an object via the application of FORCE ALONG a displacement. In its simplest form, it is often represented as the product of force and displacement. Wikipedia

In SI base UNITS: 1 kg⋅m2⋅s−2

SI unit: joule (J)

Other units: Foot-pound, Erg

Derivations from other quantities: W = F ⋅ s; W = τ θ

Dimension: M L2 T−2

Answer:

2 ORBITALS are PRESENT in sub-shell 2P

SUB TECHNO Gamerz PLS........

Answer:

a X has bigger atomic RADIUS

Explanation:

because 17 ELECTRONS present the number of subshells in ATOM will be more then in 12 e

ANSWER:

HINDI me btato answer PLEASE

Explanation:

please answer BTA do

answer:-

explain by STEPS:-

CU= 63.5

n=14

o=16

mass

cu(no3)2

63.5+(14+16*3) ('(-";''!:*!_;

We have to calculate the ratio of RADIUS of 2nd orbit of hydrogen to 3rd orbit of Li²⁺ ion.

solution : according to BOHR's theory,

radius of nth orbit is given by, r = 0.529 × n²/Z A°

so the radius of 2nd orbit of hydrogen atom.

Z = 1, N = 2

so, r = 0.529 × (2)²/1 = 0.529 × 4 ....(1)

the radius of 3rd orbit of Li²⁺ ion,

Z = 3 , n = 3

so, R = 0.529 × (3)²/3 = 0.529 × 3 ....(2)

from equations (1) and (2) we get,

r/R = 0.529 × 4/0.529 × 3 = 4/3

Therefore the ratio of the radius of 2nd orbit of hydrogen to 3rd orbit of Li²⁺ ion.

B ) 2× 103...............

ANSWER:

RUTHERFORD is the CORRECT answer .

HOPE it HELP.. do MARK me

Answer:

14.0 U..................

EXPLANATION:

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Answer

• This is called as the Avogadro's Law

• The Avagadro's Law was STATED by Amedeio Avagadro. It states that, at equal volumes of all gases at the same temperature and pressure will CONTAIN equal number of molecules

• He said that one mole will contain 6.0222×10²³ molecules

• This number is called as Avagadro's number

• AVOGADRO's number was discovered in 1909

• Avogadro derived his law with the help of Lussaic's law

• 1 mole = Given Mass/Molar Mass

• Lussaic's law states that the pressure at a given mass will CHANGE as PER the temperature of the gas

Explanation:

In a vacuum, all FORMS of electromagnetic radiation—whether microwaves, visible light, or gamma rays—travel at the speed of light (c), which turns out to be a FUNDAMENTAL PHYSICAL constant with a VALUE of 2.99792458 × 108 m/s (about 3.00 ×108 m/s or 1.86 × 105 mi/s).

ANSWER:

HEISENBERG UNCERTAINTY principle.

Explanation:

HOPE it HELPS you...

1) Mg(OH)2

2) AL2(SO4)3

3) KNO3

4) NAHCO3

Answer:

The M249 light machine gun, also known as the M249 Squad AUTOMATIC Weapon which continues to be the manufacturer's designation and formally written as Light Machine Gun, 5.56 mm, M249, is the American adaptation of the Belgian FN Minimi, a light machine gun manufactured by the Belgian COMPANY FN Herstal. Wikipedia

Length: 1.04 m

Muzzle velocity: 915 m/s

Manufacturer: FN Herstal

Place of origin: Belgium (Minimi); United STATES (M249)

Feed system: M27 linked disintegrating belt, STANAG magazine

Barrel length: 465 mm (18 in); 521 mm (21 in)

CARTRIDGE: 5.56×45mm NATO

ANSWER:

Your Answer........................