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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

You walk into a patient’s room to check a ventilator and note the temperature of the humidified gas going to the patient is only 26 C. Which of the following factors could cause this decrease in the temperature of the delivered gas?I. the heater setting is too low or has been turned offII. the circuit length is too shortIII. the water level is too lowIV. the room temperature is too hot

This is a BONUS question worth 5 points. Determine the weighted average atomic mass for chromium, given the following mass and abundance data.  Express to the correct number of significant figures based on the data given.    Show your math steps! Isotope Atomic mass % Abundance Cr-50 49.946 amu 4.345 % Cr-52 51.941 amu 83.789 % Cr-53 52.941 amu 9.501 % Cr-54 53.939 amu 2.365 % Math setup = 4 points Answer = 1 point (0.5 pt for sf)