What is the empirical formula?
The simplest ratio of the atoms of each element present in a compound.
What is the molecular formula?
Actual number of atoms of each element present in a compound.
What is the displayed formula?
Shows the actual bonds between atoms present in a compound.
What is a structural isomer?
Compounds with the same molecular formula but different structural formula. So you can make butane into 2- methylpropane…