It's Elemantary

It's Elemantary

1. Air

   • Oxygen
     • 19%
   • Nitrogen
     • 80%
   • Carbon Dioxide and Noble Gases
     • 1%

2. Gas tests

   • Nitrogen
     • No good test for this gas
   • Oxygen
     • Relights a glowing splint
   • carbon dioxide
     • Turns lime water chalky

3. Mixtures

   • Can be separated easily
   • has the same properties as the things it's made from
   • Elements haven't joined

4. solutions

   • saturated solutions
     • a solution which has dissolved as much of a solid as possible
   • solvents
     • a liquid which will dissolve a solid.
   • solute
     • A solid which will dissolve in a solvent

5. Atoms

   • Atoms are too small to see
   • atoms are the smallest part of an element
   • An element contains only one kind of atom

6. Elements

   • to represent an element we use a symbol.
   • Elements are listed in the periodic table.
   • Each element has an atomic number

7. Compounds

   • cannot be seperated easily
   • properties are different from the things its made from
   • Elements have joined
   • compounds are named from the elements that make them.
     • if a compund is made from 2 elements its name will end in-ide.
       • right hand side = products
         • left hand side= rectants

8. Chemical reactions

   • The colour may change
   • A solid may apear- or disappear
   • A gas may be given off.
   • There may be an energy change eg. a change in temperature.

9. Particles

   • solid
     • regulaur pattern
     • close together
     • Only move in thier positions
   • Liquid
     • No arrangement
     • Close together
     • can move past one another
   • Gas
     • No arrangement
     • Far apart
     • Can move freely