Im really confused on how to balance these chemical equations we did in class today.. if someone could help me with these that would be great..
1. The solids aluminum and sulfur react to produce aluminum sulfide
2. Water and dinitrogen pentoxide gas react to produce aqueous hydrogen nitrate
3. The gases nitrogen dioxide and oxygen react to produce dinitrogen pentoxide gas
4. Ethane gas (C2H6) burns in air, producing carbon dioxide gas and water vapor
5. Aluminum oxide(s) decomposes when electricity is passed through it
6. Nickel (II) hydroxide(s) decomposes to produce nickel(II) oxide(s) and water
7. Heating sodium hydrogen carbonate(s) produces sodium carbonate(aq), carbon dioxide(g), and water

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