24 !
what is different between an ionic bond and a covalent bond?
a. an ionic bond is a bond between charger atoms while a covalent bond is a bond between neutral atoms
b. an ionic bond shares electrons while a covalent bond is an attraction between opposite charges
c. an ionic bond is a bond between charged atoms while a covalent bond is a bond between opposite charges
d. a covalent bond is a bond between charged atoms while an ionic bond is a bond between neutral atoms.

C. An ionic bond is a bond between charged atoms while a covalent bond is a bond between opposite charges

B. An ionic bond shares electrons while a covalent bond is an attraction between opposite charges

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.