The reaction of hydrogen with nitrogen to produce ammonia is shown below. If there are 12 moles of hydrogen, how many moles of nitrogen are needed to react completely with the hydrogen? \( \mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g) \rightarrow 2 \mathrm{NH}_{3}(g) \) A. 36 B. 4 C. 3 D. 6

Concentrated \( \mathrm{HC}_{2} \mathrm{H}_{3} \mathrm{O}_{2} \) is 17.0 M . Determine the volume in mL of the concentrated solution required to produce 2800 mL of \( 0.656 \mathrm{M} \mathrm{HC}_{2} \mathrm{H}_{3} \mathrm{O}_{2} \)

Identify the reaction type for the reaction shown below: \( \mathrm{NaHCO}_{3} \rightarrow \mathrm{NaCO}_{3}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2} \)

What mass in grams of \( \mathrm{NaHCO}_{3} \) is required to make 59.3 mL of 2.68 M solution?

Concentrated HCl is 12.0 M . Determine the volume in mL of the concentrated solution required to produce 5500 mL of 0.250 M HCl .

Identify the reaction type for the reaction shown below: \( \mathrm{Cr}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}+\mathrm{H}_{2} \)