Total number of atoms in 4so2​

The characteristic 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 and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Which of the following is most likely true about water in chemical solutions?