Category «CHEMISTRY TERMINOLOGY»

States of Water H2O

Welcome Chemistry Lovers! In this science post we learn about three states of water i.e. different forms of water : Solid, Liquid and Gas… States of Water ( H2O) ·         Water exists in three state i.e. Solid (Ice), Liquid (Portable Water, Sea Water, Drinking Water etc.), Gas ( Steam, Vapors).  ·         In these three form …

what is chemical and what is chemical reaction

BASICS OF CHEMISTRY Chemical-any substance that has a defined composition Chemical reaction– the process by which one or more substances change to produce one or more different substances States of matter-the physical forms of matters, which are solid, liquid, gas, and plasma  Reactant– a substance or molecule that participates in a chemical reaction Product– a substance …

Chemical Reactions and Chemical Formula

Chemical Reactions Chemical Reaction is the reaction in which two or more than two substances react to form a new substance is known as Chemical Reaction. The substances which react may be ion or compound of element. Reaction: Reactant reacts with each other to give product.                Reactant   ——–>  Product Example of general chemical reactions …

Important Chemistry Polymers with their Monomer, Formula and Uses

Important Polymer Table Important Polymers with their Monomer, Formula and Uses. Polymers Monomers Monomer Formula Use 1.    Teflon Tetrafluroethene CF2=CF2 Oil seals, Gasket 2.    Polyacrylonitrile Acrylonitrile Commercial Fibers 3.    Terylene or Decron Ethylene Glycol Teryphthalic Acid HOCH2-CH2OH Commercial Fibers 4.    Nylon 6,6 And 5.    Nylon 6 Hexamethylene-diamine Adipic Acid Caprolactum NH2(CH2)6NH2 HOOC(CH2)4COOH Making Sheets, bristles …

Types of Chemical Reactions

Types of Chemical Reactions Chemical reactions are reactions which involve making and breaking of bonds between atom to yield new substances.     1.    Combination Reaction: These are the reactions in which one single product is formed from two or more reactants. Example: i. Formation of Calcium Hydroxide. CaO (s)(quick lime) + H2O (l) —–> Ca(OH)2 …

Polymer, Polymerization and Polymer Classification

Polymer And Polymerization Condensation Polymer: Nylon-6-6, Terylene. Addition Polymer: Polythene, Neoprene. Polymer Classification Polymer Classification on the basis of Source: 1.    Natural Polymer:                                    These are polymers which found in nature (in plants and animals). Example- Protein, Cellulose, Rubber. 2.    Semi-synthetic Polymer:                                           These are polymers which are prepared by treating naturally occurring polymers. Example- …

Polymer And Polymerization

Polymer And Polymerization Condensation Polymer: Nylon-6-6, Terylene. Addition Polymer: Polythene, Neoprene. Polymer Classification Polymer Classification on the basis of Source: 1.    Natural Polymer: Protein, Cellulose, Rubber. 2.    Semi-synthetic Polymer: Cellulose Derivatives as cellulose acetate (Rayon), Cellulose Nitrate. 3.    Synthetic Polymer: Plastic (Polyethene), Synthetic Fibers ( Nylon 6-6), Buna-S. Polymer Classification on the basis of Structure: …

Chemical Equations

Chemical Equations Any equation which describes the change of reactants to products is called chemical reaction. Reactant1+Reactant2+…………—>   Product1+Product2+……… In chemical equations reactants are placed on left hand side and products are placed on right hand side and arrow sign is placed between them. Direction of arrow shows the direction of reaction. Example: chemical equations …

Liquid State

Liquid State Intermolecular forces in liquids are stronger than in gases. Liquid have definite (fix) volume and they can flow and take the shape of the container in which these liquids are stored. These online education classes degree notes are published by ChemistryNotesInfo.com and hosted at ChemistryNotesInfo.blogspot.com Vapour pressure, viscosity, surface tension are some physical …

Behavior Of Real Gases

Behavior Of Real Gases Deviation From Ideal Gas Behavior:                                                     When we do different experiments, we find that real gases don’t follow PV=nRT Equation of ideal gases. So real gases don’t follow Boyle’s law means, if we plot graph between PV and P then we don’t get parallel straight line at all pressures with X-axis. …

Kinetic Molecular Theory Of Gases

Kinetic Molecular Theory Of Gases                                                       The postulates or assumption of Kinetic molecular theory of the gases are as follows: ·       Gases contain atoms or molecules, as large no. of identical particles. These atoms or molecules are at large distances from each other, so that volume of gases is very high as compared to …

Ideal Gas Equation, Equation Of State, Density And Molar Mass Of Gaseous Substances, Dalton Law Of Partial Pressure, Aqueous Tension and Partial Pressure In Terms Of Mole Fraction

Ideal Gas Equation    Combination of 3 laws (Boyles Law, Charles Law and Avogadro law) gives a single equation (PV=nRT) called as Ideal gas equation. Mathematically, According to Boyle’s Law; at constant T and n, V 1/P ……….1 According to Charles Law; at constant P and n, V T ……….2 According to Avogadro Law; at …

Gaseous State, Gas Laws, Thermodynamic Scale

Gaseous State                      Only 11 elements ( H, O, N, F, Cl, He ,Ne, Ar, Kr, Xe, Rn exists in gaseous state under normal conditions. Characteristic Physical Properties Of Gases ·       Gases are highly compressible. ·       Gases exert the equal pressure in all direction. ·       As compared to solid and liquids, gases have much lower …

Types of Forces in Chemistry

Different Types of Forces Intermolecular Forces:                              These are forces of attraction and/or repulsion between the interacting particles i.e. atom or molecules. Dutch Scientist J. Van der Waals (1837-1923) explains deviation of the real gases from ideal behavior with intermolecular forces, so intermolecular forces are also called as van der waals forces. Example: Hydrogen bonding …

Atomic number, Mass number, Isobars and Isotopes

Atomic number (Z)= no of protons in the nucleus of an atom                                        = no of electrons in a neutral atom Mass number (A) = number of protons (z) + number of electron (n) Isobars:-                These are atoms with same mass number but different atomic number.               Isotopes: –                 These are atoms …

Covalent Bond and Formal Charge (F.C.)

Covalent Bond Covalent Bonds are the bonds which are formed  by sharing of electrons. ·        When sharing of one pair of electron takes place is known as single covalent bond. ·        When sharing of two pair of electrons takes place is known as double bond. ·        When sharing of three pair of electron takes place …

Discovery of protons & Discovery of Neutrons

Discovery of Protons       =>  Discovered by E. Goldstein.      =>  In modified cathode ray tube gives +ve charge carrying particles known as canal rays.       =>  Lithest & smallest +ve ion obtained from Hydrogen called proton. Characteristics 1)    Depend upon, nature of gas present in cathode ray tube. 2)    Charge to mass ratio of …

Periodic Trends In Physical & Chemical Properties

Periodic Trends In Physical Properties 1.     Atomic Radius:-  ·        “Atomic radius decreases with increases in atomic no. in a period” because within the period, the outermost electrons are within the same valence shell. Also effective  nuclear charge increases with increase in atomic no. results in increased attraction force between nucleus and outer electrons . ·        …

Mendeleev Periodic Law, Modern Periodic Law and s, p, d, f – Block Elements

Mendeleev Periodic Law                                       Mendeleev explanation that properties of  the elements are periodic function of their atomic weights. Modern Periodic Law                                        Moseley (1913) according to this law physical &  chemical  properties of the elements are periodic functions of their atomic numbers. S – Block Elements                             Elements of group 1 (Alkali metals) with  ns2 …