Estas de vuelta en Barcelona (accent on 'a' in 'estas')
Hoteles en Barcelona in Spanish means hotels in Barcelona. It is neat that it doesn't look much different in English then it does in Spanish. A lot of words in Spanish are that way.
The official languages of Barcelona are both Catalan and Spanish. Catalan is the predominant language in Barcelona and is often used in official settings, while Spanish is also widely spoken as a second language.
Barcelona are a spanish team so they're in the spanish league.
It is the capital of the Autonomous Community (the Spanish equivalent of a state) of Catalonia and it is also the capital of the Province (the Spanish equivalent of a county) of Barcelona. However, it is not a national capital; the Spanish national capital is Madrid.
Barcelona play in the spanish league.
Barcelona is in the Autonomous Region of Catalonia.
Barcelona are in the spanish league La Liga
The official language spoken in Barcelona is Catalan, although Spanish is also widely spoken.
'Ven a Barcelona' would be the literally translation for this, but I assume that since Barcelona is a Spanish soccer team, you are actually rooting them on, in which case it would "Vaya Barcelona!" or "Vamanos Barcelona!".
Barcelona are in the spanish league La Liga
spanish
No, it is not considered rude to speak Spanish in Barcelona. Spanish is one of the official languages of Spain, along with Catalan, and many people in Barcelona are bilingual in both languages. It is generally appreciated when visitors make an effort to speak the local language, but most people in Barcelona will also understand and speak Spanish.