Ba2Ba4 is technically correct, it's just that it would reduce to BaBr2
I should certainly bloody hope so. Otherwise I wouldn't be doing a good job in regards to answering questions, would I?
Who has is the correct use of the word
Does she have? that is proably right :)
The public is correct. plural and singular verbs can be tricky... but you use a singular verb with a singular noun, and a plural verb with a plural noun. For example: The person (singular) is...