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Answer:

the d SHELL can accommodate 10 electrons

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ANSWER:

this is CHEMISTRY SECTION ASK it in PSC section

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For an ideal solution, the CORRECT option is: a) ∆mix G=0 at constant T and P. (2) ∆mix S=0 at constant T and P. (3) ∆mix V#0 at constant T and P.

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ANSWER:

1

Explanation:

is the CORRECT answer mate

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EXPLANATION:

it is SIMPLE

40*0.5 = 20

ANSWER:

SMALLER . and INVERTED

Explanation:

The IMAGE FORMED in a convex mirror is always erect, virtual and diminished

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• PLANT cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . All cells have cell membranes, and the membranes are FLEXIBLE. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.

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Explanation:

Atomic number is the number of protons, and THEREFORE also the TOTAL positive charge, in the atomic nucleus. The Rutherford–Bohr MODEL of the hydrogen atom (Z = 1) or a hydrogen-like ion (Z > 1).

Answer:

The PRESIDENTIAL School is 6 the first year of the year and the 666 66 of the cell will not be able to store the same THING as I did in the past and I am very happy birthday to you vvbbv bb vjnv I nn by j MN h b by in the ratio 5 I 7 I 4 the same thing as I did in the past and I am very happy birthday to you vvbbv bb vjnv I nn by j MN h b by in the ratio 5 I 7 I 4 the same thing as I did in the past and I am very happy birthday to you vvbbv bb vjnv

EXPLANATION:

K>CA>Zn>,Pb

Na>K>Lu>H

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ANSWER:

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Explanation:

1)Polyatomic Ions. The term poly means many, so a polyatomic ion is an ion that contains more than one atom. Thus it is different from monatomic ions, which contain only one atom. EXAMPLES of monatomic ions include Na+ and Cl- etc.

2)Since 56 G of iron = 1 mol. Therefore, 112 g of iron= 1/ 56 ×112 mol = 2 mol.

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CO2 exists as a discrete single molecule as O=C=O. and due to only van der waal's interactions the intermolecular FORCES are not strong ENOUGH, allowing the molecules move about freely, hence it exists as a gas.

SiO2 however actuall exists as a POLYMERIC network as O-Si-O-Si......., here each Si atom is bonded to O atom by a single bond and also to 2 other O atoms MAKING it strongly bonded. Due to this the intermolecular forces are tremendously high and molecules cannot move about freely, Hence SiO2 is a solid.

ANSWER:

The specific gravity of sodium carbonate is 1.25 g/ml.

Explanation:

Hence the MASS of 25 mL of solution of sodium carbonate is 1.25×25=31.25g.

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Answer:

6 is a great place to work for and I am very happy birthday to you vvbbv bb vjnv I nn by J MN h b by in the ratio 5 I 7 I 4 the same thing as I did in the PAST and I am gg

Explanation:

Gggyf and 66 in the ratio 5 I 7 I 4 the same thing as I did in the past and 6 it to the words of wisdom on Yoga from GURUJI and I am very happy birthday to you vvbbv bb vjnv I nn by j MN h b by in the ratio 5 I 7 I 4 the same thing as I did in the past and I am very

. OIl and WATER can be separated by using separating FUNNEL. CENTRIFUGATION- Separating the suspended particles of a substance from a LIQUID in which the mixture is rotated at a high SPEED in a centrifuge.

SIMPLE trick

molarity = {DENSITY in g/ml×10×%MASS by mass}÷molar mass

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EXPLANATION:

दिमाग जलन ब्लूटेन इथाइल निमंत्रण क्लोराइड इथाइल मिथाइल 10 + 3 पुत्र

Answer:

The five isomers of HEXANE are: hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, and 2,3-dimethylbutane. They are constitutional isomers because they each contain exactly the same number and type of atoms, in this case, SIX CARBONS and 14 HYDROGENS and no other atoms.

ANSWER:

FORMULA for an ALDEHYDE is RCHO,

formula of KETONE is CnH₂nO.

Answer:

463521

Explanation:

SEQUENCE....

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• LIST in tabular form any three CHEMICAL properties on the basis of which metals and NONMETALS are they are differentiated
• It reacts with OXYGEN to form its BASIC oxide.
• I react with water to form its hydroxide.
• they react with dil.acid to form its salt and hydrogen gas.

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Answer:

here is ur SOLID state reaction

Explanation:

Factors that affect solid-state reaction are CHEMICAL and morphological properties of the reagents including the REACTIVITY, surface area, and FREE energy CHANGE with the solid-state reaction, and other reaction conditions, such as the temperature, pressure, and the environment of the reaction.

Answer:

The Saturn AL-31 is a family of military turbofan engines, developed by the Lyulka, now NPO Saturn, in the SOVIET Union/Russia, originally for the Sukhoi Su-27 air superiority FIGHTER. It produces a thrust of 28,000 lbf (123 kN) with afterburning in the AL-31F, 31,000 lbf (137 kN) in the AL-31FM (AL-35F) and 33,000 lbf (145 kN) in the AL-37FU variants. Currently it powers all Su-27 derivatives and the CHENGDU J-10 multirole jet fighter which has been developed under RUSSIAN license by China....

Explanation:

The Challenge to Measure Single-phase Convective Heat TRANSFER Coefficients in Microchannels

Answer:

CATHODE rays

Explanation:

Cathode rays (also called an electron beam or an e-beam) are streams of electrons observed in vacuum tubes. If an evacuated glass tube is equipped with two electrodes and a voltage is applied, the glass opposite the NEGATIVE electrode is observed to GLOW from electrons emitted from the cathode. Electrons were first discovered as the constituents of cathode rays. The image in a classic television set is created by FOCUSED beam of electrons deflected by ELECTRIC or magnetic fields in cathode ray tubes (CRTs).

Answer:

28g./mol.

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Isoelectronic ion refers to two atoms, ions or molecules that have the same ELECTRONIC structure and same NUMBER of VALENCE electrons. The TERM means "equal electric" or "equal charge". Forexample: Isoelectronic ions. number of electrons.

• There are MANY ions that are isoelectronic.
• They have the same number of electrons, but different electron structures.

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ANSWER:

BOND LENGTH INCREASES down the GROUP...

Answer:

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A LIQUID MIXTURE in which the MINOR component is uniformly distributed with the MAJOR component.

Here, the SOLUTE is sugar and the solvent is water.

So, the solution is Sugar-water.

Explanation:

NUMBER of ATOMS of

′

A

′

=8×

8

1

=1

Number of atoms of

′

B

′

=5×

2

1

=

2

5

A:B=1:

2

5

=2:5

Formula of the SOLID =A

2

B

5

ANSWER:

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Explanation:

C2H6O + C2H4O2 = C4H8O2 (ethyl ethanoate) + H2O (water). it is an esterification reaction. When ALCOHOL REACTS with acids it forms an ester.

Sodium bicarbonate is the COMMON name of WASHING soda

due to resonance, the electron density INCREASES more at ortho- and para- POSITIONS than at meta-positions as a result the ring gets DEACTIVATED as COMPARED to benzene and hence...substitution reaction in haloarenes occur slowly

Reason is that in GROUP the element atomic NUMBER is INCREASING

The ANSWER is MAGNISIUM CHLORIDE SALT.

Let us consider an object which is projected vertically upwards with initial VELOCITY  u which reaches a maximum height h.
Acceleration due to gravity=-g
EQUATION of Motion for a body projected thrown upwards :
V=u-gt----------(1)
h=ut-1/2gt² -----------(2)
v²-u²=-2gh --------(3)

Equations of motion for freely falling body :
for FREE fall : 
Initial velocity=u=0
g=g
V=gt----------(4)
h=1/2gt²-------(5)
v²=2gh------(6)
Time of ASCENT is the time taken by body thrown up to reach maximum height h 
At maximum height , V=0

Equation (1) turns to u=gt1
t1=u/g  ----------(7)
Maximm height h=u²/2g ----------(8)

Time of descent : After reaching maximum height , the body begins to travel downward like free fall
so equation (5) h=1/2gt₂²
t₂²=2h/g
t₂=√2h/g
but from equation (9)
t₂=√2xu²/2g²
t₂=u/g -----------------equation (10)
∴t₁=t₂
The time ascent is equal to time of descent in case of bodies MOVING under gravity.

Answer:

Explanation:

If a halogenoalkane is heated under reflux with a solution of sodium or potassium hydroxide, the halogen is replaced by -OH and alcohol is PRODUCED. Heating under reflux means heating with a condenser placed vertically in the flask to prevent the loss of volatile substances from the mixture.

The solvent is usually a 50/50 mixture of ethanol and water, because everything will DISSOLVE in that. The halogenoalkane is insoluble in water. If you used water alone as the solvent, the halogenoalkane and the sodium hydroxide solution wouldn't mix and the reaction could only happen where the two layers met.

For example, using 1-bromopropane as a typical primary halogenoalkane:

You could write the full equation rather than the ionic one, but it slightly obscures what's going on:

1.Tall/Dwarf. (Length of PLANT)
2.white/purple. (Flower colour)
3.shirt/long. (POD length)
4.Round/wrinkled. (Pod shape)
5.Green/yellow. (Colour of PEA)

They FORM a STRUCTURE of MATTER..