Which best represents a balanced equation? O
A. HgO -> Hg + O2
B. 2Fe + 02 - Fe2O3
C. 2H2 + 02 -> 2H2O

Different isotopes indicate that an element will have different numbers of

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.