To test a hypothesis, robin needed to make sure the temperature outside what at least 10° above freezing. what tool did she use to make sure it was above freezing?

thermometer my friend since it is a measureful device

thanx

hey

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 maximum mass of nh3 is nh3 in grams