What are mixtures

• What are mixtures?

  • Mixtures consist of two or more elements or compounds which are not chemically combined 
  • The components of a mixture retain their own properties  
  • E.g. in a mixture of iron and sulfur. The iron is still magnetic and the sulfur is still yellow 
  • Mixtures can be separated by physical separation techniques

  
• What can physical separation techniques be used to separate?

  • Physical separation techniques can only be used to separate mixtures 
  • They cannot be used to separate the elements in a compound
• In physical separation techniques, are new substances/products made?

  • Physical separation techniques do not involve chemical reactions 
  • So this means that no new substances are made