3 KClO4 + 8 Al → 4 Al2O3 + 3 KCl How many moles of Aluminum (Al) are needed to produce 45 grams of Potassium Chloride (KCl)?

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

Aquantity of that isotope to decay to 1/2 of  its original value