Considering the limiting reactant concept, calculate the number of moles of CO2 produced from 2.80 moles of O2 and 0.700 moles of C2H6 by the following reaction. 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)

Calculate:  -4.372 x (2.342/15)  There is only one correct answer.  One of the routine calculation in CHM2045 is multiple-step addition/subtraction and multiplication/division.   If you can’t get the correct answer for the first time, retake this quiz, you have unlimited attempts.

What is/are the possible product(s) of dehydrohalogenation of cis-1-bromo-2-ethylcyclohexane?      ©

What are the molecular shape and bond angles in PF3?

Use the Lewis dot structure (make sure you show all electron pairs) to predict the electronic geometry (EG) and the shape of the molecule H2S

Acknowledgment I have read the syllabus for this course in its entirety and understand its contents, my responsibilities as a student, including all assignments due, due dates, and times.

Calculate:  (-4.372 +23) / (-15)  If you use your personal scientific calculator, show both its front and back sides to the camera.  There is only one correct answer.  One of the routine calculation in CHM2045 is multiple-step addition/subtraction and multiplication/division.  If you are graded wrong for the first attempt, retake this quiz. You have unlimited attempts.  Note: the negative sign is not necessarily the minus sign on your calculator. 

Which of the following is the Lewis structure of N ?

Elements in group 7A are considered _____________.

The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104 carats (1 carat = 200 mg). How many carbon atoms were present in the stone?