Need some help on this.
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Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

How many moles of kci are produced from 2.50 moles k

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3