a. Potassium and oxygen gas react to form potassium oxide
b. Sodium and water react to form sodium hydroxide and hydrogen gas
c. Iron and oxygen gas react to form iron (III) oxide
2007-09-27 10:59:23 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
a. There is a disconnect here. Potassium reacts with oxygen to form potassium superoxide:
K + O2 ===> KO2 That is potassium superoxide. You will meet superoxide if you decide to study a medical career. It will be superoxide dismutase.
Your teacher wants you to write:
4K + O2 ==> 2K2O
b.2Na + 2H2O ===> 2NaOH + H2
c.4Fe + 3O2 ===> 2Fe2O3
2007-09-27 11:11:30 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋
Sorry, the answer is (b). (a) is wrong since the coefficients are adjusted to balance, not the subscripts.
2016-04-06 04:19:26 · answer #2 · answered by ? 4 · 0⤊ 0⤋