A 100% yield is hardly ever achieved in a chemical synthesis and one reason for this is that some of product is inevitably lost in the process of trying to purify it. For each of the synthesis, look at the purification steps in this experiment and identify some places where the product ester was lost. Explain thoroughly

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

The excretory system,need answers for all: )

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action