basic chemistry 1
DESCRIPTION
presentation on basic chemistryTRANSCRIPT
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Welcome
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KAVIYATTU COLLEGE OF EDUCATION
PIRAPPANCODE
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POWER POINT
Presented by,
Beettu B.L
Physical Science
Reg no: 13368004
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BASIC CHEMISTRY
Matter - Solid, Liquids, Gas
Elements – Atoms & Particles
Molecules & Compounds
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Chemistry
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Matter
Matter = any material substance with Mass & Volume
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States of Matter- 3 StateSolid
Liquid Gas
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Solid
Definite Shape
Definite Volume
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Liquid
Indefinite Shape – takes the shape of the container
Definite Volume
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Gas
Indefinite Shape – takes the shape of the container
Indefinite Volume – can expand and be compressed
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Elements & Examples
One of the 100+ pure substances that make up everything in the universe C = Carbon Na = Sodium
O = Oxygen Ca = Calcium
H = Hydrogen K = Potassium
N = Nitrogen I = Iodine
S = Sulfur Cl = Chlorine
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Atom
The smallest particle making up elements
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Sub-Atomic Particles
Protons p+ - positive
charge, in nucleus
Electrons - e- negative charge, orbiting
around nucleus
Neutrons n0 – no
charge, in nucleus
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Drawing an Atom of Carbon
Nucleus:Electrons
6
C12.011
Atomic no:= no: of p+ or no: of e-
Carbon has 6 p+ and 6 e-
Atomic Mass – Atomic no: = no: of n0
Carbon has 6 n0
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Molecules
Glucose Sugar
C6H12O6
Chemical formula
C
H
OH
C C
C
C CH
HH
H
H
HOH
O
OH
HOOH
Structural formula
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Compounds
Compounds - 2 or more elements chemically
combined to form a new substance with
new properties
Properties – The way a chemical substance looks and
behaves
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Compounds
Compounds are made of 2 or more different atoms
combined to form Molecules
H + O H2O
H
O
H
Chemical formula lists the number of different atoms
in a single molecule
Structural formula shows the arrangement of the
atoms in a single molecule
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Examples of Organic Compounds
C, H + O Carbohydrates – Sugars, Starch & Cellulose
C, H + O Lipids – Fats & Oils
C, H, O, N, & sometimes P + S
Proteins
C, H, O, N, + P Nucleic Acids – DNA & RNA
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Diga, diga, diga, diga, that’s all folks!
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Thank you…