Dit is het zeventiende hoofdstuk.

Dit means this and is the Dutch neuter demonstrative pronoun. In this sentence, it points to something being identified: This is ...

Dutch often uses dit is ... in the same way English uses this is ... when introducing or identifying something.

Dutch nouns take one of two definite articles: de or het.

• hoofdstuk is a het-word
• so the correct form is het hoofdstuk

Unfortunately, whether a noun takes de or het usually has to be learned with the noun itself. A good habit is to memorize nouns together with their article:

• het hoofdstuk = the chapter

Zeventiende is the ordinal number seventeenth.

It comes from the cardinal number zeventien = seventeen.

In Dutch, ordinal numbers are often formed by adding:

• -de
• or -ste

For zeventien, the ordinal is zeventiende.

Some examples:

• tien → tiende = tenth
• veertien → veertiende = fourteenth
• twintig → twintigste = twentieth

So het zeventiende hoofdstuk means the seventeenth chapter.

Because it is being used as an adjective before a noun.

In Dutch, adjectives usually take -e when they come before a noun with a definite article, and that includes ordinal numbers used adjectivally.

So:

• het hoofdstuk = the chapter
• het zeventiende hoofdstuk = the seventeenth chapter

The -e here is normal and expected.

In Dutch, just like in English, an adjective normally comes before the noun.

Since zeventiende is describing hoofdstuk, it comes first:

• het zeventiende hoofdstuk

Compare:

• het nieuwe boek = the new book
• de grote stad = the big city

So the order is: article + adjective/ordinal + noun

Not exactly.

Both can mean this, but they are used differently depending on grammar.

• dit is used with het-words and often as a pronoun
• deze is used with de-words

Examples:

• dit boek = this book
• deze tafel = this table

Since hoofdstuk is a het-word, if you put the demonstrative directly before it, you would say:

• dit hoofdstuk = this chapter

In the sentence Dit is het zeventiende hoofdstuk, dit stands alone as a pronoun: This is the seventeenth chapter.

Dutch main clauses usually follow the V2 rule: the finite verb comes in the second position.

Here the first element is Dit, so the verb is comes next:

• Dit | is | het zeventiende hoofdstuk.

This is very normal Dutch word order.

Yes, that is possible, but it is slightly different in style.

• Dit is het zeventiende hoofdstuk = This is the seventeenth chapter.
• Dit is hoofdstuk zeventien = This is chapter seventeen.

The first uses an ordinal (seventeenth). The second uses a cardinal number (seventeen) in a labeling style, similar to English Chapter 17.

Both are correct, but they are not structured the same way.

A rough pronunciation is:

ZAY-vun-teen-duh

More carefully in Dutch, the stress is on the first syllable:

• ZE-ven-tien-de

A few pronunciation notes:

• z sounds like English z
• v in Dutch is often softer than English v
• the final -e is usually a weak uh sound

And hoofdstuk is roughly: HOHF-stukh with the stress on hoofd.

Hoofdstuk is a noun meaning chapter.

It is a compound word:

• hoofd = head / main
• stuk = piece

Historically, it literally suggests something like a main section or main part. You do not need to think about the literal parts when using it, though; just learn het hoofdstuk as the normal Dutch word for chapter.

Yes. The plural is:

• het hoofdstuk = the chapter
• de hoofdstukken = the chapters

Notice two things:

1. the plural article is de
2. the noun changes to hoofdstukken

This is useful if you later want to say things like:

• de eerste hoofdstukken = the first chapters

Normally, no. In a regular sentence, zeventiende is written with a lowercase letter:

• Dit is het zeventiende hoofdstuk.

You would only capitalize it if normal capitalization rules require it, for example at the start of a sentence or in a title.