Balancing reactions • 4 steps continued 3. Check each atom to be sure that the equation is balanced 4. Make sure all the coefficients are in the lowest possible ratio
Examples 1. Zn + HCl ZnCl 2 + H 2 2. N 2 + H 2 NH 3 3. Ammonium nitrate powder decomposes to yield nitrogen gas, liquid water, and oxygen gas. 4. Tetraphosophorous decoxide gas reacts with liquid water to produce phosphoric acid.
5. C 3 H 10 + O 2 CO + H 2 O 6. Fe 2 O 3 Fe + O 2 7. (NH 4 ) 2 SO 4 + Fe(OH) 3 Fe 2 (SO 4 ) 3 + NH 4 OH 8. Aluminum metal will react with a solution of copper(II) sulfate to produce a solution of aluminum sulfate and solid copper. 9. A solution of iron(II) sulfide will react with a solution of aluminum hydroxide to produce a precipitate of iron(II) hydroxide and a solution of aluminum sulfide. 10. Propane gas (C 3 H 8 ) burns in the presence of oxygen to produce carbon dioxide and water
Types of Reactions
combination decomposition Single displacement Double displacement