2 H. + 0, 2 H, O 5.00 moles of hydrogen react with excess oxygen. What is the maximum number of moles of water
that can be formed?

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o