If it's properly adjusted ur head and nexk will stay in place for no further injuries.It helps so it don't move
As the gas cools it condenses and becomes a liquid its atoms also become smaller
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>
D. It will lose 2 electrons in order to become stable.