Chemical reactions

LO: To review the topic of chemical reactions

Work through the following PowerPoint presentation and make notes on any topic you missed or don't remember.

Work through the pages on BBC bitesize on: 

  • What are reactions?
  • Types of Reaction
  • What is combustion?

Read the text and watch the clips.

Make a revision resource on this topic.  This can be a poster page, mind map, video, PowerPoint, flash cards or questions with answers.

Topic list is below:


What you should know:

  • Physical reactions are temporary and can be reversed
  • Chemical reactions are permanent an are irreversible
  • Chemical reactions are represented using word equations with reactants on the left, products on the right and an arrow meaning to make
  • Metals react with acids to form a metal salt and hydrogen gas
  • Burning is a chemical reaction where substances react with oxygen in the air to make an oxide
  • Thermal decomposition is the breakdown of a substance using heat
  • Rust is a form of corrosion where iron reacts with oxygen in the air to form a red substance called iron oxide