How many moles are there in 56.0 g of N2(g)

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Acontrol during an experiment. might change remains constant does not exist does change

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.