Agas is collected over water at a certain temperature. the total pressure is 762. mmhg. the vapor pressure of water at this temperature is 17 mmhg. what is the partial pressure of the collected gas?

a. 762 mmhg
b. 17 mmhg
c. 779 mmhg
d. 745 mmhg
e. none of the above

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.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.