Author: Anonymous

Which of the following is the closest value for the bond angle around the oxygen atom in H2O?

Given that 1 inch = 2.54 cm, 1 cm3 is equal to                         in3.  

Which of the following number has the largest number of significant figures? A) 0.000345 B) 0.1030 C) 1.3000    D) 10.0       E) 0.01500

Which statement describing atoms is FALSE?

What would happen to a red blood cell when it is placed in a hypertonic solution?

Consider the reaction of sodium metal and oxygen described by the balanced equation: 4 Na + O2   →   2 Na2O If 2.55 mol of sodium reacts, and 75.0 g of Na2O is obtained, what is the percent yield? DO NOT INCLUDE THE UNIT IN YOUR ANSWER. (Neatly write your calculation on a scratch paper, show your work slowly on the webcam before you submit the test. Take a photo of your work, and submit it on Final Exam Work assignment on the module.) 

Which of the following molecule(s) is (are) polar? Consider the numbers in the choices as subscripts.

Which chemical formula is INCORRECT? Consider the numbers in the choices as subscripts.

How many milliliters of 0.360 M H2SO4 are required to neutralize 25.0 mL of 0.100 M Ba(OH)2? H2SO4  + Ba(OH)2  —> BaSO4 + 2H2O DO NOT INCLUDE THE UNIT IN YOUR ANSWER. (Neatly write your calculation on a scratch paper, show your work slowly on the webcam before you submit the test. Take a photo of your work, and submit it on Final Exam Work assignment on the module.) 

Which of the following material is a homogeneous mixture?