x Incorrect. How many atoms of gold are there in one ounce of gold? Enter your answer in the form 1.00E2 for scientific notation 8.6E22 atoms of gold How many moles of manganese atoms, Mn, are needed to combine with 0.138 mol of O atoms to make manganese(II,III) oxide, Mn304? mol Mn atoms Use correct number of significant digits; the tolerance is +/-1 in the 3rd significant digit Review Problem 3.045 How many atoms are in 56.5 g of carbon-12? Ã 10 12c atoms