The line representing in the melting point of monoclinic sulfur is: O At the line between Point 2 and Point 3
At the line between Point 1 and Point 3
O At the line between Point 1 and Point 2
O The line at temperatures below 95.4 °C

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.