How many moles of HCIO3 can be produced from 7.2 g of ClO2 according to the following reaction?
6 CIO2 + 3 H20 - 5 HCIO3 + HCI

that's what i got you can count the number of atoms

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

hope this :