Balance this equation. if a coefficient of "1" is required, choose "blank" for that box. c3h6 + o2 → co2 + h2o

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

This is a combustion reaction in which hydrocarbon burns in the presence of oxygen to form carbon dioxide, water and energy.

The balanced chemical reaction is written as :

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

i think its 100

i hope this !