Ascientist has two solutions, which she has labeled solution a and solution b. each contains salt. she knows that solution a is 65% salt and solution b is 80% salt. she wants to obtain 120 ounces of a mixture that is 70% salt. how many ounces of each solution should she use?

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.