How many atoms are in this formula? C₃H₈
How many atoms are in this formula? 2Na₂SO₄

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

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.

Identify the electromagnets with poles that are reversed from the electromagnet shown above