1. halogens are good disinfectants. which of the following is a halogen?
a. n
b. o
c. ci
d. fe

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Answer it was we, the the whole people, who formed the union. and we formed it, not to give the blessings of liberty, but to secure them: not to the half of ourselves and the half of our posterity, but to the whole people- women as well as men.

Answer:   d.  carbon dioxide.