4. Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water. How
many molecules of water are produced from 2.0 x 10” molecules of oxygen? How many moles of water
are produced from 22.5 moles of oxygen?

Given a = {(1, , 5)(6,4)}, b = {(2,0)(4, ,5)(0, 0)) and c = {(1, 1)(0, 2)(0, 3)(0, ,5)}, answer the following multiple choice question: from the list of sets a, b, and c, state the domain of set b. domain of set b: {0, 6,5} domain of set b: {2, 4,-4, 0} set b does not have a domain