Hydrogen gas is produced when zinc reacts with hy drochloric acid. If the actual yield of this reaction is 85%?

how many grams of zinc are needed to produce 112 1 of H2 at STP?

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.

4d^55s^1 ( third choice)