Three Different Substances Are Placed in Three Separate,identical,open Dishes and Weighed.They

question 2

Essay

Three different substances are placed in three separate,identical,open dishes and weighed.They are each heated for a period of time.They are then cooled and weighed.The first dish is found to have lost mass,the second dish is found to have gained mass,and the third dish is found to have exactly the same mass it had before heating.How do you explain these results,knowing that mass is conserved in chemical reactions?

Explain the immune response process to an antigen.

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Recognize the importance of DEA numbers in the prescription of controlled substances.

Understand how prescriptions can be transmitted electronically.