Discard the water layer, which contains the aspirin or acetominophen) and evaporate the chloroform layer to dryness under gentle heat. The result is codeine base, a white crystalline powder. Combine 20 mL pyridine and 25 mL conc. HCl in a beaker and heat strongly to 190C to drive off any water.
A simple sentence usually consists of a single finite clause with a finite verb that is independent. More complex sentences may contain multiple clauses. Main clauses (i.e. matrix clauses, independent clauses) are those that can stand alone as a sentence. Subordinate clauses (i.e. embedded clauses, dependent clauses) are those that would be awkward or incomplete alone.
Compound Sentences-A compound sentence has two independent clauses. An independent clause is a part of a sentence that can stand alone because it contains a subject and a verb and expresses a complete thought. - Basically, a compound contains two simple sentences. - These independent clauses are joined by a conjunction (for, and, nor, but, or, yet, so). Examples: 1.