Calculate the number of moles in 3.01 x 10^23 atoms of zinc

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

In all living cells dna controls cellular activities by

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.