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In fluid DYNAMICS, the KIRCHHOFF equations, named after Gustav Kirchhoff, DESCRIBE the MOTION of a RIGID body in an ideal fluid

The CONCLUSION is that the key is coated with copper
the process of COATING ONE METAL with another metal is CALLED electroplating

This is the ANSWER okkkkkk

Can You be more PRECISE with Your QUESTION because that's a STATEMENT.

Here they are.

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When the ammonium,NH4+is form the fourth HYDROGEN is attached by DATIVE COVALENT bond because only the hydrogen nucleus is transferred from the chlorine to the NITROGEN the hydrogen electron is left BEHIND on the chlorine to form a negative chlorideion..

Covalent Bond-A covalent bond, also called a molecular bond, is a CHEMICAL bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable BALANCE of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Ionic Bond-Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a TYPE of chemical bond that GENERATES two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a NEGATIVELY charged anion

After STRIKING from POLE then they REFLECT in a same MEDIUM

Because its particle can be seen with NAKED EYES and it is QUIET UNSTABLE

Ozone acts as the Earth's NATURAL shield.

The ozone layer acts as a filter for the shorter WAVELENGTH and highly hazardous ULTRAVIOLET radiation (UVR) from the sun, PROTECTING life on Earth from its potentially harmful effects. 

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If a fish is trapped in shallow water, it is UNABLE to MOVE to catch FOOD or to escape predators, or it may not even be able to get enough water through its gills to survive

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No. of MOLE=2.5
Molar MASS of Mg=24 g
Mass=Molar mass× No. of mole
= 24×2.5
= 60 g
Now,
No. of atoms=Mass÷Molar mass×Avogadro's no.
=60÷24×6.022×10^23
=1.5055×10^23

The van der Waals equation of state approaches the ideal gas law PV=nRT as the values of these constants approach zero. The CONSTANT a provides a correction for the INTERMOLECULAR forces. Constant b is a correction for finite molecular size and its value is the volume of one MOLE of the atoms or molecules.

The SI UNIT of vander waal's constant a is Nm^4 mol^-2.

The SI unit of b is m^3 mol^-1

The HABER Process combines NITROGEN from the AIR with hydrogen derived mainly from natural gas (methane) intoammonia. The reaction is reversible and the production of ammonia is exothermic.
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Chemical reaction is also known as a chemical CHANGE because the reactant molecules are equal to the product molecule

for example to 2H2+02>2H20

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⬇️ANSWER ⬇️

⭐THERE IS TAUTOMERISM BETWEEN AMMONIUM CYANATE AND UREA⭐

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ACETIC ACID is more ACIDIC

Hey..
CATALYST is a substance which changes the RATE of a chemical reaction without INVOLVING in the chemical reaction.
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As the pressure is INCREASED, the volume of the GAS decreases along the curve. The point at which liquefactionof the gas starts, volume decreasesrapidly because liquid has much less volume than the gas....

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Because IRON is LESS REACTIVE than ZINC SULPHATE

Proteins
In the form of skin, hair, callus, cartilage, muscles, tendons and ligaments

aminoacids
The precise amino acid content, and the sequence of those amino acids, of a specific protein, is determined by the sequence of the bases in the gene that encodes that protein. The chemical properties of the amino acids of proteins DETERMINE the biological activity of the protein.

Vitamins
The water-soluble vitamins are vitamin C (ascorbic acid) and the B vitamins, which INCLUDE THIAMIN (vitamin B1), riboflavin (vitamin B2), vitamin B6, niacin (nicotinic acid), vitamin B12, folic acid, pantothenic acid, and biotin.

butric acid
Butyric acidis a fatty acid occurring in the form of esters in animal fats. The triglyceride of butyric acid makes up 3–4% of butter. When butter goes rancid, butyric acid is liberated from the glyceride by hydrolysis, leading to the unpleasant odor.

Trifluoroethanoic ACID> trichloroethanoic acid> diflouroethanoic acid

The Rutherford model is a model of the atom devised by Ernest Rutherford. Rutherford directed the famous Geiger–Marsden experiment in 1909 which suggested, upon Rutherford's 1911 ANALYSIS, that J. J. THOMSON's plum pudding model of the atom was incorrect. Rutherford's new model[1] for the atom, based on the experimental results, contained new features of a relatively high central charge concentrated into a very small volume in COMPARISON to the rest of the atom and with this central volume also containing the BULK of the atomic mass of the atom. This region would be known as the "nucleus" of the atom.

Aluminium ore is called BAUXITE. The BAUXITEIS purified to yield a WHITE powder, aluminiumoxide, from which aluminium can beextracted. The extraction is DONE by electrolysis. But first the aluminium oxide must be made molten so that ELECTRICITY can pass through it.

I THINK the ANSWER should be CATALYST

HEY MATE HERE IS YOUR ANSWER

Oxygen is a great OXIDIZER because it is so electonegative, which nean it is reallywants to accept electrons, when you eat oxygen is oxidizing the food (fuel) you INGESTED, to generate energy you need to LIVE. so there is 'combustion ' going on inside you!

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There are 2 MOLES of NITROGEN GAS in 28G of nitrogen gas

Chlorine has more ELECTRON GAIN enthalpy but flourine is most ELECTRONEGATIVE atom . flourine has less electron gain enthalpy because of its small SIZE .

Hey frnd....
When the pressure on a sample of a dry gas is held constant, the KELVIN temperature and the volume will be in direct proportion.
This directly PROPORTIONAL relationship can be written as:


or


where:
V is the volume of the gas,
T is the temperature of the gas (measured in kelvins ),
k is a constant.
This law describes how a gas expands as the temperature increases; conversely, a decrease in temperature will lead to a decrease in volume. For comparing the same substance under two different sets of conditions, the law can be written as:


The EQUATION shows that, as absolute temperature increases, the volume of the gas ALSO increases in proportion.

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When an electron withdrawing group is present attached to the BENZENE RING like
NO2 the benzene ring act as a meta directing group. -R EFFECTING group is also meta directing.

If two MISCIBLE liquids of the same VOLUME but DIFFERENT densities are mixed then the density of the mixture will be the sum of the densities of the individual liquids.

Based on the miscibility, it is likely that the INTER MOLECULAR forces within the liquids are the same hence miscible.

It give ester
ch3cooch3
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and it REACTION called
oxidation by BAEYER REAGENT

2931,2-DICYANOBENZENENITRILE140-128Solid2943-NITROBENZOIC ACIDACID, NITRO140*167Solid

Percentage COMPOSITION of a COMPOUND is a ratio of an amount of each element to the total amount of individual elements in a compound, which is then multiplied with 100. Let us take an example of H2O i.e. Water. Water has 2 molecules of hydrogen, and one mole of water is of 18.0152 grams. And one mole of a hydrogen atom is of 1.008 grams. So, 2 hydrogen moles weighs 2.016 grams. Hence, one mole of water has 2.016 grams of hydrogen mole. Therefore, the percentage composition of hydrogen would be 2.016/18.0152 = 11.19%. Now let us study in detail about Percentage composition and its formula.

Atomic MASS

Dalton's Atomic Theory

Stoichiometry

What is Percentage Composition?

The percentage composition of a given compound is nothing but the ratio of the amount of each element to the total amount of individual elements present in the compound. We then multiply this value by 100. Here, we measure the quantity in terms of grams of the elements present in the solution.

The PERCENT composition of any compound is an expression of its composition in terms of all the elements present. The significance of this composition calculation is FOUND in the chemical analysis.

The Formula for Percentage Composition

We can express the percentage composition of a given element using the formula below:

Here, % CE is the percentage composition of the element E. This is the value that we are going to calculate. The numerator on the right side indicates the total amount of element E present in the compound. On the other hand, the denominator is an expression for the total amount of all the elements present in the compound.

We multiply this ratio by 100 to get the percentage form of the composition. Let us now look at the mass percentage of composition in more details. We will also look at its importance

As SODIUM form inorganic COMPOUND but KEROSENE is a ORGANIC compound so it doesn't react with kerosene.
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