Chemistry, 21.12.2020 07:30, quickestlearner5694

19. H2O, CO2, CaCl2, and Na2CO3 (the numbers are subscripts) are all examples of that tell which atoms and how much of each atom is needed to make a molecule of a substance. A. chemical formulas
B. types of atoms
C. elements

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19. H2O, CO2, CaCl2, and Na2CO3 (the numbers are subscripts) are all examples of that tell which ato...