The smallest amount of energy molecules need to stick together and react is called
a. kinetic energy
b. reaction energy
c. potential energy
d. activation energy

D. activation energy

Explanation:

In a chemical reaction you add heat to increase the kinetic energy of molecules up to a point where the chemical bonds can be broken and from there formation of other bonds will create the product compounds. The energy need to do this is called the activation energy.

the correct answer is boyle

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.