After a party, a room is known to have high entropy and thus is a good example of which law?

the zeroth law of thermodynamics
the first law of thermodynamics
the law of conservation of energy
the second law of thermodynamics

How many moles of oxygen react with 12 moles of aluminum

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Which compound most likely has the greatest bond energy?