The equation p + o2 → p2o5 is unbalanced. when balanced, what is the correct coefficient for o2?

Answer : The correct coefficient for is, 5

Explanation :

The given unbalanced chemical reaction is,

According to the balanced chemical reaction, the number of different atoms of elements present on the reactant side should be equal to the the product side.

The balanced chemical reaction will be,

By the stoichiometry we can say that, 4 moles of phosphorous react with 5 moles of oxygen to give 2 moles of diphosphorous pentoxide as a product.

From the balanced chemical reaction, we conclude that the correct coefficient for is, 5

Hence, the correct coefficient for is, 5

since electrons are negative the answer is neagtaive

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.