To know the answer, compare the oxidation number of the element in the reactant and the product side. The oxidation number of Al was originally +3, then became 0 after the reaction. On the other hand, Fe was originally 0, then became +2 after the reaction. When the element is oxidized, it oxidation number increases. <em>Thus, the element oxidized is Fe.</em>
Number of neutrons = Atomic mass - Atomic number (number of protons)
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One example of a solution<span> is </span>salt water<span> which is a </span>mixture<span> of </span>water<span> and </span>salt<span>. You cannot see </span>the salt<span> and </span>the salt<span> and </span>water<span> will stay a </span>solution<span> if left alone. Parts of a</span>Solution<span>. Solute - The solute is the substance that is being </span>dissolved<span> by another substance.</span>
You need to find number of moles of methane and oxygen. then make ratios
