Does "The other constituents may or may not be metals but, when mixed with the molten base, they will be soluble, dissolving into the mixture." contain the correct answer to "What happens when an alloy is mixed with a molten base?"

A: yes

Does "In 1882, the Chinese Exclusion Act was passed, and Chinese workers who chose to stay in the U.S. were unable to have their wives join them." contain the correct answer to "Where did most Chinese men enter the US?"

A: no

Does "German names have been revived in commercial Russian trade and there is sometimes talk of reverting Kaliningrad's name to its historic name of Konigsberg." contain the correct answer to "What has since been considered in Kalinigrad?"

A:
yes