Elements and compounds

Give some examples of some elements

  • Co- cobalt
  • O-oxygen
  • Fe-Iron 
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What is the smallest part of a molecule that can


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How can compounds be created?

Atoms of different elements can be combined to make compounds.

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what is an example of a compound?


Sodium oxide


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What are the key features of a chemical reaction?

  • Compounds are broken up or formed
  • At least one new substance is created
  • Measurable energy change 
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How is a chemical equation written?

The reactants (chemicals that are reacting) are on the left side.

Products (chemicals that are forming) are on the right side.

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What are the two types of equations?

  • Word
  • Symbol
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What is the equation for the creation of sodium ox

Sodium + oxygen = sodium oxide

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