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EXPLANATION:

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Explanation:

Answer:

Answer:

WIDTH of rectangle is 25 CM.

Step-by-step explanation:

GIVEN :-

A wire bend in form of square of side 30 cm.

Then wire is again bend in form of rectangle of length 35 cm.

To find :-

Width of the rectangle.

Solution :-

Here, Concept is : If we are bending wire in form of square than again bending it in rectangle. Than, perimeter of square will equal to perimeter of rectangle because we are not INCREASING length of wire by one measure we are bending it in square and rectangular shape.

So,

Perimeter of square = 4 × side

⟶ Perimeter = 4 × 30

⟶ Perimeter = 120

Thus,

Perimeter of square is 120 cm.

According to concept, Perimeter of square and perimeter of rectangle are equal.

So, Perimeter of rectangle is 120 cm.

Let, Breadth or width or rectangle be x cm.

We know,

Perimeter of rectangle = 2(Length + Breadth)

⟶ 120 = 2×(35 + x)

⟶ 120 = 70 + 2x

\⟶ 120 - 70 = 2x

⟶ 50 = 2x

⟶ 50/2 = x

⟶ x = 25

We take, Width of rectangle be x.

Therefore,

Width of rectangle is 25 cm.

Answer:

1.displacement

2.combination

3.double displacement

4.double DECOMPOSITION

ANSWER:

(10/101) X 100 =9.9% ..

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ANSWER:

I think answer is TRUE

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Explanation:

Explanation:Gases liquefy when their component molecules come into CONTACT and interact with each other, this will always happen before ABSOLUTE ZERO because real gas particles have VOLUME. But an ideal gas has particles of zero volume, and no intermolecular interactions, by defination. Therefore it can not liquefy.

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Answer:

The ELECTRO chemical equivalent of a substance is the mass of the substance deposited to ONE of the electrodes when a CURRENT of 1 AMPERE is PASSED for 1 sec . A quantity of electricity of one coulomb is passed

Answer:

We have OXYGEN here, okay now oxygen’s atomic MASS is 16. That means 16 grams of oxygen is 1 mole of oxygen.

1 mole = 6.022 x 10^23 atoms <== Avogadros’s constant

16G = 1 mole = 6.022 x 10^23 atoms of oxygen

16G = 1 mole ; then 4G = how many moles?

4/16 = 0.25 mole; That means 4 grams of oxygen is 0.25 moles.

So we multiply 0.25 by the no. of atoms in ONE mole (Avogadro’s constant)

0.25 x (6.022 x 10^23) = 1.5055 x 10^23

Thus 4 grams of oxygen has 1.5055 x 10^23 atoms.

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CaCO3+2HCl→CaCl2+H2O+CO2.

ANSWER:

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ANSWER:

...

Explanation:

KYA HAI ye PATA nhi

kuchh BHI

ANSWER:

D

Explanation:

it is the answer of this QUESTION

Explanation:

MANY copper (I) compounds are unstable in AQUEOUS solution and undergo DISPROPORTIONATION as 2Cu+ → CU + Cu2+ . This is due to. free energy change of reaction is positive. ... second ionisation energy of Cu is higher than first ionisation energy.

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Answer:

it is TEMPERATURE, can TURN any SUBSTANCE into solid to LIQUID and liquid to gas.

EXPLANATION:

The IUPAC NAME of the COMPOUND is. CH3−OH∣CH−CH2−O−C2H5.

ANSWER:

Give the IUPAC NAME for each of the following STRUCTURES:

a.\ce{(CH_3)_2CHCH(CH_3)CH_2CH(CH_3)_2}

b.\ce{CH_3CH_2CH_2CH(CH_3)CH(CH_2CH_3)CH_2CH_2CH_3}

c.\ce{CH_3CH_2CH(CH_2CH_2CH_3)CH_2CH(CH_3)_2}

d.\ce{CH_3CH(CH_3)CH(CH_3)CH(CH_3)CH(CH_3)_2}

ANSWER:

All five of the Group 15 ELEMENTS form hydrides of the formula EH3.

...

Trihydrides of the Group 15 Elements.

Compound | Traditiona name| IUPAC name|

NH3 | Ammonia | Azane |

PH3 | Phosphine | PHOSPHANE |

AsH3 | Arsine |Arsane |

SBH3 | Stibine | Stibane |

(i) Bond angle

Bond angle decreases → The hydrides of these elements are pyramidal in shape with a lone pair of electrons in one of the orbitals. On moving down the group the bond angles gradually decrease due to a decrease in bond pair-bond pair repulsion.

ANSWER:

a) KCl -> K+ + Cl-

b) HNO3 -> H+ + NO3-

c) Mg(OH)2 -> Mg 2+ + 2 OH-

Answer:

Atmospheric REFRACTION is the deviation of light or other ELECTROMAGNETIC wave from a straight line as it passes through the atmosphere due to the variation in air density as a FUNCTION of height. This refraction is due to the VELOCITY of light through air, decreasing with increased density.

Answer:

Temperature : HIGHER temperatures increase the ENERGY and THEREFORE the movement of the molecules, increasing the RATE of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion.

ANSWER:

there r THREE transition ELEMENT which r PRESENT

Answer:

All elements of the first transition series have OXIDATION state (+2) because after losing the electrons of (4s) SUBLEVEL at first (except for scadium), while in the higher oxidation STATES they lose the electron of (3D) in sequence.

Answer:

The VAN der Waals RADIUS is EQUAL to one HALF the distance between two unbonded atoms when the electrostatic forces between them are balanced. In other words, it is half of the closest distance between two atoms that aren't bonded or within the same molecule.

Answer:

Water has a MOLARITY of 55.5 M. 1 LITER of water weighs 1000 G, and, as molarity is the number of moles per liter; finding the molarity of water is the same as finding the number of moles of water in 1000 g.

Answer:

Biopôle is a science park of 80,000 square metres destined to host companies whose main activity is in the life sciences field. While it is open to all THERAPEUTIC AREAS, the main FOCUS is on developing innovative solutions in the fields of oncology, immunology and personalised medicine.[1] Biopôle offers space for industrial research and development or administrative USE.

Answer:

A CELL's standard state potential is the potential of the cell under standard state conditions, which is approximated with concentrations of 1 mole per liter (1 M) and pressures of 1 atmosphere at 25oC. WRITE the oxidation and REDUCTION half-reactions for the cell.

Explanation:

ANSWER:

The reason is that methyl group of TOLUENE is ELECTRON releasing.

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ANSWER:

Catalytic hydrogenation of cis-2, 3-diphenyl-2-butene GIVES 2, 3-diphenylbutane (optically INACTIVE, MESO).

In chemistry, a nonmetal is a chemical ELEMENT that mostly lacks the characteristics of a METAL. Physically, a nonmetal tends to have a relatively low melting POINT, boiling point, and density. A nonmetal is typically BRITTLE when solid and usually has poor thermal CONDUCTIVITY and electrical conductivity.

Explanation:

Distillation is a process where a mixture MADE of TWO or more liquids (called "components") with different boiling points can be separated from each other. The mixture is heated until one of the components boils (TURNS to a vapor).

Answer:

GRIFFIN's brilliance as a man of science FADES before his darker traits. Comment

ii. Why do you think Mr. Weiherer was pleased that Richard EBRIGHT not only put in the

nightly research hours TOWARDS butterflies, but also his other INTERESTS?

iii. What mademe Forestier exclaim in astonishment, when she saw Matilda, years after

the Minister's ball?

EXPLANATION:

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venigar or ACETIC ACID OK THANK you

The electrical conductivity UNITS are siemens PER metre, S⋅m-1. The siemens ALSO used to be referred to as a mho - this is the reciprocal of a an ohm, and this is inferred by spelling ohm backwards. Conductance is the reciprocal of resistance and one siemens is equal to the reciprocal of one ohm

Explanation:

About electric conductivity : Unit of electric conductivity

The unit of electrical conductivity is, by definition, the reciprocal of electrical resistivity, S/m (siemens per METER) in SI units.

ANSWER:

(3). Cr

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EXPLANATION:

CA + SO4 = CaSO4

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Answer:

4

Explanation:

Answer:

The main sources of salt in the Western diet, APART from DIRECT USE of sodium CHLORIDE, are bread and cereal products, meat products and milk and dairy products.

Explanation:

ANSWER:

moles of Ca=weight in gram/molar MASS

=20/40

=1/2 moles

1 moles of any ATOM contains 6.023x10²³ ATOMS

so 1/2moles contain 3.011x10²³ atoms

Answer:

Which of the following is not a CONJUGATE acid-base pair?

ANS-(B). NaHCO3-Na2CO3

ANSWER:

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ANSWER:

HI gty-eacc-jxg comme

Explanation:

1. gas
2. water
3. vaccum
4. no.free SURFACE area
5. sugar

ANSWER:

ASSALAMALAIKUM

ĢØØĐ MØRNING

Answer:

Some of the most common kinds of laboratory equipment can MAGNIFY, measure, ignite, weigh or HOLD various substances for a VARIETY of purposes. Microscopes help to magnify things that are too small for the human eye to see well. VOLUMETRIC flasks are a kind of glassware that can hold a certain volume of liquid.

ANSWER:

ANTIBODIES are chemical SUBSTANCES in our BODY which protects us against the FOREIGN bodies (antigens)

Answer:

When an excess BASE is dissolved in a solution of sodium hydroxide. Sodium hydroxide dissociates into OH- IONS and when the number of OH- increases then concentration ALSO increases because concentration is the number of OH- ions present per unit VOLUME.

Answer:

A biomaterial is a substance that has been engineered to interact with BIOLOGICAL systems for a medical purpose, either a THERAPEUTIC (treat, augment, repair, or replace a tissue function of the body) or a diagnostic one. As a science, biomaterials is about FIFTY years old. The study of biomaterials is called biomaterials science or biomaterials engineering. It has experienced steady and strong growth over its history, with many companies investing large AMOUNTS of money into the development of new PRODUCTS. Biomaterials science encompasses elements of medicine, biology, chemistry, tissue engineering and materials science.

ANSWER:

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