In case anyone else has my problem- I think I've figured out why I'm always getting confused with God and Gott. Hopefully someone will correct me if I'm misleading everyone.
- Är läsken god?
- Smakar läsken gott?
The adjective "good" is god, gott or goda (according to gender/plural, as normal). Gott is also the adverb form.
In Swedish, "smakar" takes adverbs. Things don't taste "good" or "bad", they taste "well" or "badly"; "Den smakar söt" is wrong, it should be "Den smakar sött" ("It tastes sweetly").
So in this case, even though we're saying the same thing, the two possible forms are "Is it [adjective]" or "Does it taste [adverb]".