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sarah science

posted by on .

why have he brackets around the (OH)2

and not just OH2

it ask to lsit each element and the number of atoms present.

  • sarah science - ,

    If it was just OH2 then it would be a differnt element, water actually. The brackets are there to indicate that it is together, and to show you there is 2 of each, the 2 just at the end as you put it would indicate only 1 oxygen atom and 2 hydrogen atoms. Because it is a compound it is placed together in brackets.

  • sarah science - ,

    See my response to Sarah's original question.

  • sarah science - ,

    I should have said to look at Sam's original post and my response.

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