2H2 + O2 → 2H2O 5.0 L of oxygen gas are mixed with excess hydrogen gas to form water. What is the theoretical yield, in grams, of water that can be produced?

g H2O

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate