1. Propane, C3H8 undergoes combustion to form two products (review chapter 7 if needed). a) How many moles of propane reacts with 1.56 mol of oxygen? b) How many moles of water are produced from part a?

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.