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reactant : -

reactant are those SUBSTANCE which combine to form new product.

reactant participate in chemical REACTION for making new product for EXAMPLE :-



2 Mg + O2 ==> 2 MgO

here in upper reaction magnesium and oxygen is reactant.




reactant combine to form product with new chemical property


=====.

product :-

product at that chemical substance which is formed by combining of two or more than reactant.


in product there is formation of new substance with new properties.


here example of product is:-


2Mg+ O2 ===> 2MgO


in this up reaction magnesium oxide is product of magnesium and oxygen ( rectant )


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Hii frnd here is your ANSWER...
exothermic REACTION are the reaction in which heat or energy is released .....
ex-cao+h2o------ca( oh)2.+ heat .....
where's exothermic reaction are the reaction in which heat or energy is ABSORBED.......
ex- caco3---------------- cao+co2
heat...
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We implicitly assume that the radiation has the correct energy. As radiation is ELECTRIC dipole in NATURE (it consists of oscillating electric and magnetic fields) if the molecule also generates an oscillating electric field it can interact with the radiation; energy is taken from the radiation field and ENTERS the molecule. Thus a molecule may gain a QUANTUM of vibrational or rotational energy or an excited STATE may be produced.

Answer:

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Explanation:

Radius DECREASES, SMALLER ions carrying current in small area, more ASSOCIATIONS with anions & due to this, the ions BECOME heavy & they move with reduced speed as compared to less associated ones, & thus conductivity decreases.

Heya!

here is your ANSWER...

No of moles of carbon atoms = 12 g/12g/mole = 1 mole 
We know that,Number of atoms = number of moles x Avogadro number
= 1 x 6.022 x 1023 = 6.022 x 1023 In 1 atom of carbon there are 6 PROTONS and 6 neutrons = 12 NUCLEONS.
The number of nucleons = 6.022 x 1023 x 12
= 7.2264 x 1024

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Here is the answer.
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This is a case of DILUTION of a solution

We can use the formula:

n1v1 = n2v2

Where, n1 and v2 are ORIGINAL VALUES and n2 and v2 are final values

10 x 10 = 0.1 x v2

v2  = 100/0.1 = 1000 ml

Volume of water needed = 1000 - 10 = 990 ml

A = 6.022* 10^23
m= M/(5*10) Where M = MOLECULAR WEIGHT of na2so4.7h2o

Organic chemistry is the chemistry of CARBON COMPOUNDS. All organic compounds contain carbon; however, there are some compounds of carbon that are not CLASSIFIED as organic. For EXAMPLE, salts such as carbonates (e.g., Na 2 CO 3 , CACO 3 ) and cyanides (e.g., NaCN, KCN) are usually designated as inorganic.

An uncharged molecule (typically HIGHLY REACTIVE and short-lived) having an unpaired valency electron.

Here is your ANSWER BUDDY:
NABR
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Compounds of halides and first or second column elements are highly soluble in water, because each atom readily donates or accepts an ELECTRON (or two). Calcium, a 2nd column element, readily gives up 2 electrons to form a +2 ion. Copper is not as willing. The BEHAVIOR of transition metals such as copper is not as uniform as the first and second column elements. That's the basic difference.

Btw, CuCl2 is actually pretty soluble. The highly INSOLUBLE ONE is CuCl.

Hmmm
wait.....just SOLVING.....

A comprehensive investigation of OXIDE ion transport in La1−xSrxMnO3−0.5x (x = 0.2 and 0.5) over the temperature RANGE of 800–2000 K is carried out employing long molecular dynamics simulations. The macroscopic structural and transport properties are in good AGREEMENT with previous experimental studies. The role of La/Sr ordering on oxide ion diffusivity is investigated. Fresh insights on diffusion pathways, MICROSCOPIC energetics and MECHANISM of oxide ion transport are derived.

Which have definite VOLUME but not definite SHAPE are liquid

-liquid can be flow
-weak INTERMOLECULAR forces of attractions that solid.
-it is more COMPRESSIBLE tha solids..
-less compressible that gases.
-it can flow.
-it will take the shape of that pot in which is kept

NOooo!! we can't use citiric INSTEAD of TARTARIC ACID because it is not an EDIBLE acid and if it is an edible acid then we can use it.

It is- to 1 it will GIVE the ANSWER

Hexagonal.
hope it HELPS U

Carbon NANOTUBE stops the MEDIUM of oxygen to iron and PREVENT OXIDATION( rusting)

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Wurtz REACTION is not preferred for the preparation of ALKANES containing odd number of carbon atoms because the alkane containing odd number of carbon atoms are not PREPARED as the major PRODUCT. There are more than one reaction possible here.
HOPE THIS HELPS MATE!!!!

No short trickes AVAILABLE but U can easily FIND hybridization by its electron coming orbital it's the easiet WAT y

Lattice is a type of potential energy that may be defined in two ways. In one definition, the lattice energy is the energy required to break apart an ionic solid and convert its component atoms into gaseous ions. This definition causes the value for the lattice energy to always be POSITIVE, since this will always be an endothermic reaction. The other definition says that lattice energy is the reverse process, meaning it is the energy released when gaseous ions bind to form an ionic solid. As implied in the definition, this process will always be exothermic, and thus the value for lattice energy will be negative. Its values are usually expressed with the units kJ/mol.

Lattice Energy is used to explain the stability of ionic solids. Some might expect such an ordered STRUCTURE to be LESS stable because the entropy of the system would be low. However, the crystalline structure allows each ION to interact with multiple oppositely charge ions, which causes a HIGHLY favorable change in the enthalpy of the system. A lot of energy is released as the oppositely charged ions interact. It is this that causes ionic solids to have such high melting and boiling points. Some require such high temperatures that they decompose before they can reach a melting and/or boiling point.

Within the alkali metals, sodium is more reactive than LITHIUM but LESS reactive than potassium. Its IONIZATION energy is higher than potassium but lower than lithium. It has ONE electron in the outermost electron shell and thus wants to give up one electron to higher ELECTRONEGATIVE element

No your WORDS should be of 20 words OK JI
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Because of IONS are LESS and is PUT in the WATER

D) NONE...

is your ANSWER

Because carbon has atmic no. 6 which means in FIRST orbit K the no. of ectrons=2 and the remaing four are outermost electrons so C has valency of 4

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