Ineed a quick
which statement is correct about gasoline when it is burned?
heat energy is created by the gasoline.
the total energy of the gasoline decreases.
chemical energy in the gasoline is destroyed.
chemical energy is transformed into heat energy.

chemical energy is transformed into heat energy

Explanation:

energy can not be gained, lost, or destroyed, energy can only be transformed into different forms of energy

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.