Answers created by Mrs Goodson

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• What are some examples of polar molecules?
  
• How can I write the formula for zinc chloride?
  
• How can I write the formula for sodium chloride?
  
• How is a chemical reaction affected by the addition of a catalyst?
  
• What is a reaction rate?
  
• What are chemical reactions?
  
• What are some examples of chemical reactions?
  
• How can I write the formula for potassium bromide?