A piece of ice with a mass of 12.5g at 0 °C is dropped into a calorimeter cup with 100. g of liquid water at 20.0 °C. After the ice melts completely, the final temperature inside the calorimeter is 10.0°C. The specific heat of water is 4.184J/g.°C.
Which substance lost heat?
Which substantive gained heat?
What is the change in temperature?
How much heat did the water lose?
What is the best of fusion?

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.

it would be a gas formation

answerambulatory;