The most active of all the chemical elements is a halogen known as
a. iodine.
b. bromine.
c. fluorine.
d. astatine.

What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

Briefly discuss radical republicans' characteristics and their roles in advancing rights for black americans.

What principle did president truman invoke in sending u.s. troops into south korea without first asking congress to declare war?