Of sulfuric acid, carbonic acid, nitric acid, and hydrochloric acid, which one is considered a weak acid

Which other elements contain the same number of outer electrons as sodium

Calculate the number of moles of ethane in 100 grams

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.