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Select ALL substances that involve only ionic bonding.

Jewel Potts has advanced fibrotic lung disease and requires moderate to high FiO2. She is currently on a 40% air-entrainment mask but becomes short of breath when she removes the mask to eat. What would you recommend as a supplemental form of O2 while eating?

Which one of the following lists contains a noble gas, an alkaline earth metal, and a liquid, in that order? 

A temperature of 21oF is the same as

What is emitted when Ar-39 nucleus decays to K-39?

What is the %K in K2S?

You place a patient on SIMV with a preset rate of 8/min, a Vt of 500 ml and 10 cmH2O of PEEP. You notice a peak pressure of 25 cmH2O for each breath. Which of the following alarm settings would be appropriate?I. low exhaled minute ventilation alarm at 5 L/mII. low PEEP/CPAP pressure alarm at 5 cmH2OIII. high inspiratory pressure limit at 40 cmH2OIV. low exhaled volume alarm at 500 ml

For the above patient, what is recommended?

The equilibrium constant expression for the reversible reaction 4 HCl(g) + O2(g) 

If one were going to make an extremely efficient humidifying device, one would want to consider which of the following?I. gas contact timeII. temperatureIII. cross areaIV. surface area