Are these exceptions typed and/or checked?

FWIW, the FAQ itself says it doesn't have proper exception handling:

"Why does Go not have exceptions?"

http://golang.org/doc/go_lang_faq.html

I am tired of answering questions you can't be bothered answering yourself. It wouldn't bother me so much if you hadn't already formed such strong opinions already. If you're not interested in learning the language, then just be quiet. It's not useful to spread misinformation about something you don't understand.