In the reaction c5h8 + __o2 → 8h2o + 5co2, what coefficient should be placed in front of o2 to balance the reaction? 5 8 9 no coefficient is needed

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Answer explain why it is not possible to deduce a complete order of reactivity.

Element before carbon on the periodic table