C4 Chemical changes

Involve re-arrangement of atoms Mass is conserved

"Re-arrangement" refers to destroy/create

Irreversible

New substances formed

Properties

Appearance

Colour change

Texture

Word equations

Reactants (Starting materials) -->Products (Ending materials)

Types of chemical change

Oxidation

Respiration

Take in oxygen to break down food

Rusting

Iron based material

Rust

Red brown substance

Prevents, Painting, Greasing, Galvanizing

Carbon dioxide

  1. Increase Global Temp
  1. Dissolve in Water bodies

Carbonic Acid (Weak Acid) pH<7