____ units are SI quantities obtained by combining base and supplementary units.

A. Referenced
B. Factored
C. Combined
D. Derived


Answer: D

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Which of the following statements about LLE is true?

A. In a plot of the molar Gibbs free energy of mixing of a binary mixture as a function of a mole fraction, the two local minima in the plot (not at the pure component endpoints) will define the composition of the equilibrium liquid phases. B. The 1-parameter Margules equation cannot predict a miscibility gap for a binary liquid mixture, but the 2-parameter Margules equation can. C. At extreme conditions of temperature or pressure, the ideal solution model can predict a miscibility gap for a binary liquid mixture. D. All of the above are true. E. None of the above are true.

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Companion animals are commonly referred to as:

A. Mutts B. Felines C. Pets D. Canines

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Human error analysis (HEA) is used to predict human error.