A reaction is occurring in a test tube. How is heat transmitted to the surroundings? (A) Heat is carried out with matter as matter is changed with the surroundings.
(B)As bubbles are formed and gas escapes, the heat is carried with the rising bubbles.
(C) All of the heat escapes out of the open top of the test tube as molecules collide with the air
(D) Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.

A. Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.

Explanation:

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.

the answer is a and have a great day