anonymous
  • anonymous
I need help on how to tell if the chemical formula is forming an ionic bond or covalent bond? For example C2H4, BaCl4???
Chemistry
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
First of all, a covalent bond happens when electrons are 'shared'. This bond specifically occurs between two non metals. For example C2H4, there are carbon and hydrogen. Both are non metals so,|dw:1378680035629:dw| thus giving C2H4, So basically when you're given a compound just check if they are metals or non metals. On the other hand, an ionic bond happens when the valence electrons are being transferred. For example BaCl2, Ba is a metal while Cl is a non metal so, ionic bond takes place. However, i don't know about BaCl4, never heard of it.
anonymous
  • anonymous
P.s my drawing is not the best but i hope you understand it. There is a double bond between the carbon atoms : C=C
anonymous
  • anonymous
ohh ok so it's covalent if its a metal and a non-metal?

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anonymous
  • anonymous
no that's ionic, covalent happens between non metal only.
anonymous
  • anonymous
ohh alright that makes more sense!! thank you so much!:) oh & one more thing...how do you know when to use the cross over method?
anonymous
  • anonymous
when you have a metal and a non metal i'm guessing. I'm not really familiar with the cross over method.
anonymous
  • anonymous
alright thank you for taking your time to explain this to me :)
anonymous
  • anonymous
your welcome! I'm glad i could help ^_^

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