La segunda sala del museo tiene una escultura y un retrato.

Because segunda agrees with sala, and sala is a feminine singular noun.

In Spanish, words like primero, segundo, tercero often behave like adjectives, so they change to match the noun:

• el segundo museo — masculine singular
• la segunda sala — feminine singular
• las segundas salas — feminine plural

So here, segunda matches sala.

Because de + el contracts to del in Spanish.

So:

• de + el = del

That is why you get:

• la segunda sala del museo

This is a very common contraction. Another one is:

• a + el = al

A useful detail: this contraction does not happen if El is part of a proper name, such as El Escorial.

Spanish uses tener much more naturally than English in this kind of description.

So la sala tiene una escultura is a normal way to say that the room contains or features a sculpture.

English often prefers something like:

• There is a sculpture in the room

Spanish can also say that:

• En la segunda sala del museo hay una escultura y un retrato

The difference is mainly one of focus:

• La segunda sala del museo tiene... = describes the room and its contents
• Hay... en la segunda sala del museo = states that those things exist there

Both are natural.

Because escultura is feminine and retrato is masculine.

In Spanish, nouns have grammatical gender, and the article must match:

• una escultura
• un retrato

This gender is grammatical, not necessarily logical or based on real-world sex. It is best to learn nouns together with their article:

• la escultura
• el retrato

That helps you remember the gender correctly.

In this context, sala means a room, hall, or gallery space inside a museum.

For a museum, sala is very natural. It often sounds better than habitación, which usually refers more to a room in a house, hotel, or home.

So in a museum:

• sala = exhibition room / hall / gallery room

Because each noun needs its own article here.

You are talking about:

• una escultura
• un retrato

Since the nouns are singular and have different genders, Spanish normally gives each one its own article.

So:

• una escultura y un retrato — correct

But:

• una escultura y retrato — not natural here

Even when two nouns are linked with y, Spanish often repeats the article if each noun is being presented as a separate item.

This is the most neutral and standard order.

The structure is:

• la — article
• segunda — ordinal adjective
• sala — noun
• del museo — phrase that specifies which room

So literally, it is structured as:

• the second room of the museum

Spanish can sometimes change word order for emphasis or style, but la segunda sala del museo is the normal way to say it.

Yes, absolutely.

That version is also correct and natural. The difference is mostly stylistic:

• La segunda sala del museo tiene una escultura y un retrato
  Focuses on the room as something that contains those objects.

• En la segunda sala del museo hay una escultura y un retrato
  Focuses on what is present in that location.

So a learner should understand both patterns, because both are common.

Not necessarily.

Retrato usually means portrait, but it can refer to a portrait in different forms, depending on context:

• a painting
• a drawing
• sometimes even a photograph

In a museum context, many people will imagine a painted portrait, but the word itself is broader than that.

Yes. Very often, Spanish uses de where English uses apostrophe ’s.

So:

• the museum’s second room
  becomes
• la segunda sala del museo

Spanish normally prefers this de structure instead of an apostrophe-style possession.

So if you are thinking in English terms, del museo often corresponds to of the museum or the museum’s, depending on how you would naturally say it in English.