Author: Anonymous

How many total electrons are in a bisulfate anion?

A particular pharmaceutical drug requires four reactions, back to back, to synthesize in a lab.  You perform each of the four reactions, and obtain the percent yields for each reaction as shown below.  If the percent yield for the overall multistep synthesis is 21.6%, what was the percent yield of reaction 4?   Reaction 1:  81.5% yield Reaction 2:  71.9% yield Reaction 3:  96.4% yield Reaction 4:  ?  (calculate this)  

What is the name of this element, whose element symbol is shown below?  Enter the name in all lowercase. Cu

What is the symbol of the element below?  Enter the name using correct case (lowercase/uppercase). oxygen

What is the symbol of the element below?  Enter the name using correct case (lowercase/uppercase). sulfur

What is the symbol of the element below?  Enter the name using correct case (lowercase/uppercase). iron

What is the symbol of the element below?  Enter the name using correct case (lowercase/uppercase). uranium

What is the symbol of the element below?  Enter the name using correct case (lowercase/uppercase). bromine

What is the name of this element, whose element symbol is shown below?  Enter the name in all lowercase. O

What is the name of this element, whose element symbol is shown below?  Enter the name in all lowercase. Cl