When conducting an experiment, a scientist should: attempt to test every possibility attempt to control the conditions place no limits on the investigation proceed without specific goals

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.

1.solid

2.carbon dioxide

3.helium

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.