Do l of the assigned molecules obey the octet rule? if not, why(or in what way)did the octet rule fail?

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

What is a difference between a mixture of elements and a mixture of compounds