A 957 mL NaCl solution is diluted to a volume of 1.40 L and a concentration of 7.00 mol/L . What was the initial concentration?

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.

passing a magnet thought the

mixture , because iron gets attracted to magnet .

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2