extreme delicacy or subtlety in action, performance, skill, discrimination, taste, etc. 2. skill in handling a difficult or highly sensitive situation; adroit and artful management: exceptional diplomatic finesse. 3. a trick, artifice, or stratagem.
For H2SO4 we have a total of 32 valence electrons. Put a pair between the atoms. We're forming chemical bonds here. We've used 8, 10, 12, and then around the outside to fill the octets on the Oxygens, 14, and 32.So this looks like a pretty good Lewis structure for H2SO4. In the H 2 SO 4 Lewis structure Sulfur is least electron electronegative atom and goes in the center of the Lewis structure. 2  When we have an H (or H2) in front of a polyatomic molecule (like CO 3, SO 4, NO 2, etc.) we know that it's an acid.
Berkeley, creator of Physics for Future Preside... A molecule of methane consists of 4 hydrogen atoms and one carbon atom: C H4. Oxygen molecules are O2. To burn (combine) you need two O2 molecules. C H4 + 2 O2 --> CO2 + 2 H2O. The process gives off energy (that means that the outgoing molecules of carbon dioxide (CO2) and water (H2O) have high velocity and heat up the surroundings, perhaps triggering other methane and oxygen molecules to combine (that is, to burn).