If a temperature inversion is encountered immediately after takeoff or during an approach to a landing, a potential hazard exists due to

Ammonia gas (a valuable chemical reactant) can be formed by the reaction of nitrogen with hydrogen according to the equation: N2(g) + 3H2(g) → 2NH3(g) In a particular reaction, L of nitrogen gas (measured at a pressure of Pa and a temperature of °C) mixes with L of hydrogen (measured at a pressure of Pa and a temperature of °C). The reaction produces L of ammonia gas at STP. What is the percent yield of the reaction? Enter your answer to one decimal place and without units.

How much work (in J) is required to expand the volume of a pump from 0.0 L to L against an external pressure of atm?  Enter your numerical answer to two decimal places and without units. Do not use scientific notation.

If g of O2 is required to inflate a balloon to a certain size at °C, what mass (in g) of O2 is required to inflate it to the same size (and pressure) at °C? Enter a number to 1 decimal place and without units.

A mL sample of nitrogen gas was collected over water at 23.7°C and a barometric pressure of 706 mmHg. What mass of nitrogen, in grams, was collected?   Enter a number, without units, to 4 decimal places.

A L container holds g of Ne and an unknown amount of Ar at °C and a total pressure of mmHg. Calculate the number of moles of Ar present. Enter a number to 4 decimal places and without units.

FAD, NADP, and NAD are all carriers of

The amount of energy required to initiate every metabolic reaction is called

When g MgCl2 is dissolved in enough water to give g of the solution in a coffee-cup calorimeter, the temperature increases from °C to °C. If the solution has a specific heat capacity which is essentially the same as water, 4.184 J/g∙ °C, calculate the enthalpy change in J per gram of MgCl2 dissolved. Enter your answer to 0 decimal places and without units

Find the  standard enthalpy of the schematic reaction (ΔHorxn) in kJ/mol, described by the equation: X + Yx  → Z + Yz Standard enthalpies of formation of reactants and products are (in kJ/mol) ΔHfo(X) ΔHfo(Yx) ΔHfo(Z) ΔHfo(Yz) Enter your answer to 0 decimal places and without units.