Elements Compounds and Mixtures (by Deven)
Upcoming SlideShare
Loading in...5
×

Like this? Share it with your network

Share
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
2,735
On Slideshare
2,735
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
63
Comments
0
Likes
3

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Chemistry holiday homework Compounds, Elements and Mixtures
  • 2. Topics
    • Elements
    • Definitions
    • Examples
    • Compounds
    • Definitions
    • Examples
    • Mixtures
    • Definitions
    • Homogeneous Mixtures
    • Heterogeneous Mixtures
  • 3. ELEMENTS
  • 4. DEFINATIONS
    • An element is a substance which cannot be split up into two or more simpler substances by the usual chemical methods of applying heat, light or electric energy.
    • An element is a substance which is made up of only one kind of atoms.
    • Every substance in this world is made up of one or more elements.
  • 5. EXAMPLES
    • SODIUM
    • DIAMOND
    • CARBON
    • MERCURY
    • BROMINE
    • HYDROGEN
    • OXYGEN
  • 6. COMPOUNDS
  • 7. DEFINATIONS
    • A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass.
    • Compounds can be further divided into three classes on the basis of their properties:
    • a ) Acids
    • b ) Bases
    • c ) Salts
    • A compound cannot be separated into its components by physical methods.
    • The properties of a compounds are entirely different from those of its constituent elements.
    • The composition of a compound is fixed, the constituents are present in a fixed proportion by mass.
    • A compound has a fixed melting point, boiling point, etc.
    • Compound is a homogenous substance.
  • 8. EXAMPLES
    • Marble
    • Sodium Hydroxide
    • Common Salt
    • Water
    • Chalk
    • Copper Sulphate
  • 9. MIXTURES
  • 10. DEFINATIONS
    • A mixture is a substance ehich consists of two or more elements or compounds not chemically combined together.
    • All solutions are mixtures.
    • The various substances present in a mixture are known as “constituents of mixture” or “components of the mixture”.
    • Mixtures are of two types:
    • a) Homogenous Mixtures
    • b) Heterogeneous Mixtures
  • 11. Homogenous Mixtures
    • Those mixtures in which the substances are completely mixed together and are indistinguishable from one another are called homogenous mixtures.
    • All the homogenous mixtures are called solutions.
    • Eg.. Sea water, Soft drinks, Air, Petrol, etc.
  • 12. Heterogeneous Mixtures
    • Those mixtures in which the substances remain separate and one substance is spread throughout the other substance as small particles, droplets or bubbles, are called heterogeneous mixtures.
    • The suspension of solids in liquids are also heterogeneous mixture.
    • A mixture containing two (or more) immiscible liquids is also a heterogeneous mixture.
    • Eg.. Glass, Soil, Milk, Ink, etc.
  • 13. M a de By
  • 14.
    • DEVEN AHLAWAT
    • SHUBHAM CHAUDHARY
    • G.ABHISHEK
    • RITESH SAMANTA