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Round off the value  531,496.39 to keep 7 significant figures.  Write the answer in the box:

A 21 year old male patient with a diagnosis of status asthmaticus is intubated and has been receiving mechanical ventilation. There is a sudden increase in airway pressures. The patient is hemodynamically stable and breath sounds are clear but significantly decreased on the right. Which of the following should the respiratory therapist recommend?

Round off the value  531,496.39 to keep 5 significant figures. 

This is a BONUS question worth 4 points.   Convert 435 oF to K.   Show your math setup with answer.  An answer only will NOT receive full credit. You may choose to use the equation editor (xx  ).  Click on the three vertical dots to find it in the tool bar. Express answer using significant figure rules. Math setup = 3 pts Answer  = 1 pt (0.5 pt for sf)

Convert 45,700 nm to cm.  Show  the metric definition you used along with your math setup with answer.  An answer only will NOT receive full credit. You may choose to use the equation editor (  ).  Click on the three vertical dots to find it in the tool bar. Metric definition = 1 pt Math setup = 2 pt Answer = 1 pt (sf worth 0.5 pt)

What symbol represents the atom containing 56 protons and 82 neutrons?

Convert -85 K to oC. Note: Do not show any places after the decimal.   Do not show any units.

A particular bracelet was made from rose gold with the composition of 72.00 % Au, 2.75 % Ag and 25.25 % Cu.  If the bracelet contains 9.75 g of copper, then what is the mass of the bracelet?   Show your math setup with answer.  An answer only will NOT receive full credit. You may choose to use the equation editor (x  ).  Click on the three vertical dots to find it in the tool bar. Express answer using significant figure rules. Equation = 1 pt Math setup = 2 pts Answer  = 1 pt Sig Figs = 1 pt

Specify whether each of the following is polar, nonpolar, or ionic: a) C6H6 benzene [blank10] b) Mg(NO3)2 [blank9] c) C10H8 mothballs [blank8] d) C3H7OH isopropanol [blank7] e) C8H10 xylene [blank6]

A particular bracelet was made from sterling silver with the composition of 92.5 % Ag and 7.5 % Zn.  If the bracelet has a mass of 35.7 g, then what mass of Ag does the bracelet contain?   Show your math setup with answer.  An answer only will NOT receive full credit. You may choose to use the equation editor (x  ).  Click on the three vertical dots to find it in the tool bar. Express answer using significant figure rules. Equation = 1 pt Math setup = 2 pts Answer  = 1 pt Sig Figs = 1 pt