Spanish language Q&A Forum

Am I correct in understanding that the use of Unos/as is for countable nouns (pears, sunglasses, cellphones... etc)? For non countable nouns such as money, salt, or sugar, you would use a different word to say some?

Rafael y Julio son unos chicos muy deportistas? could you please explain why not Rafael y Julio son unos chicos muy deportistes?  since Rafael y julio are boys ?

This article talks about using El Presente to express general facts, simple enough... 

... however my qualm is with the use of Ser vs Estar. My understanding was that ser would be used to generally describe things which don’t change over a prolonged period of time, eg. Relationships, jobs, generally accepted facts etc. 

Therefore I was terribly confused when the correct response to one of your questions was: 

“Francia está en Europa”.

Whereas the example on this page states:

“Roma es la capital de Italia.” 

Both of these seem like general facts with a geographical theme... where do I draw the line? 

Apologies for the essay! Haha

One of my answers is “No me apetece un bocadillo ni un burrito”.

According to the corrector, this answer is wrong.

I do not understand because in the explanations, there is a note which reads as follows:

“We sometimes omit the first “ni” and only use the “ni” in the second element of the sentence with a verb in negative”