How can two molecules with the same chemical formula react differently?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Draw the conjugate acid for the following base. remember to include charges and non-bonding electrons where necessary.