Use the following equation for the combustion of methane gas. CH4(9) +202(g) + CO2(g) + 2H2O(1)
In a certain reaction at STP, 29.2 L of methane is combusted
with 63.3 L of oxygen.
What volume of excess reactant remains after the reaction is
complete?

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess

Where is the following?

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic