The following items are part of either the macroscopic domain, the microscopic domain, or the symbolic domain of chemistry.  Which of the following represents the symbolic and microscopic domain? 1.  AL is the symbol of an aluminum atom. 2. A bottle with a label that reads Al contains aluminum metal. 3. The mass of a lead pipe is 14 lbs. 4.  The mass of a certain chlorine atom is 35 amu

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