<span>The first one,
The oil blocks oxygen from touching and reacting with the iron, so less oxygen is available for the rusting(oxidation) reaction</span>
Answer:
2Na + 2H2O → 2NaOH + H2
Explanation:
A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products.
Portal system. Think that may help