When an atom is broken down into parts, what happens to its identity?

a. the atom is no longer recognizable.
b. the atom becomes a new type of matter.
c. the atom becomes a new element.
d. the atom takes on a new average atomic mass.

How have the greenhouse gasses increased from the year 2000 to 2018

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.

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid