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urgent help needed!!!

what is .0966 rounded to 2 significant digits? and why?

  • chemistry -

    9.7*10^-2 or 0.097

    leading zeros are not significant
    since u want 2 significant digits you round .0966 to 0.097.

  • chemistry -

    how many grams of carbon dioxide is formed when 3g of carbon reacts with 50.00 g of oxygen?

  • chemistry -

    Piggy-back questions are likely to be missed.
    Please make a separate post.

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