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chemistry

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I need some help with afew questions that I have and I have to go to bed soon for school tomorrow.
how are molecules and polyatomic ions similar?

  • chemistry -

    The smallest particle of a compound that has all the chemical properties of that compound. Molecules are made up of two or more atoms, either of the same element or of two or more different elements. Ionic compounds, such as common salt, are made up not of molecules, but of ions arranged in a crystalline structure. Unlike ions, molecules carry no electrical charge. Molecules differ in size and molecular weight as well as in structure.

  • chemistry -

    thank you for your help it is greatly appreciated.

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