Chem hw


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bla bla bla this is chem hw

Storyboard Text

  • Today i'm going to introduce 3 eletments to you.They are Carbon,Nitrogen and Oxygen.
  • First, let me talk about Oxygen.Oxygen makes up 21% of the atmosphere.And the boiling point of the oxygen is -183 °C,and the melting point is -218.8 °C.
  • The next one is nitrogen.It is a colorless, odorless, and tasteless gas.It contains 78.09 percent of Earth's atmosphere.
  • Excuse me, I want to know what is the boiling point and melting point of nitrogen.
  • Thank you for your question.The boiling point of the nitrogen is-195.8 °C and the melting point is -210 °C.
  • The last element i am going to talk about is Carbon.The boiling point of carbon is 4827.0 °C and the melting point is 3500.0 °C.Also at higher temperatures, carbon will react with oxygen to give carbon oxides, and metals to give metal carbides. .
  • This is the end of my sharing , thank you.
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