Answers edited by dee

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• What element has the electron configuration 1s2 2s2 2p6 3s2 3p2?
  
• How do you find the simple subject in a sentence? And what is a simple subject?
  
• What is prefix and/or suffix in the word "illogical"?
  
• What is the difference between an interrogative adjective and an interrogative pronoun?
  
• Question #b652c
  
• A certain sample of #"HClO"_2# has a concentration of #"0.125 M"#. Calculate the pH at equilibrium. Why can we not treat #"HClO"_2# as a strong acid, even though #K_a > 1#?
  
• Question #7c609