Which state of matter is made up of atoms and molecules that are able to move with complete freedom and collide with each other and with the walls of their container? a gas b solid c liquid d plasma

a) gas

the atoms can fill their container and are not restrained to one another because of their high energy                                    

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.

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