Question: please help Be sure to answer all parts. Enter your answer in scientific notation. Carry out the following calculation, paying special attention to significant figures,

please help

Be sure to answer all parts. Enter your answer in scientific notation. Carry out the following calculation, paying special attention to significant figures, rounding, and units (J = joule, the SI unit of energy; mol = mole, the SI unit for amount of substance): (6.022 x 1023 atoms/mol)(7.68 x 10-18 J/atom)(2-2 - 4-2) x 10 J/mol Note that the numbers 2 and 4 in the last term are exact

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