Il vetro è riciclabile e il sacchetto è compostabile.

Because il is the masculine singular definite article, meaning the.

• vetro is a masculine singular noun, so you say il vetro
• sacchetto is also masculine singular, so you say il sacchetto

In Italian, articles are used more often than in English, so the glass and the bag sound very natural here.

È means is.

It is the third-person singular of the verb essere (to be):

• il vetro è riciclabile = the glass is recyclable
• il sacchetto è compostabile = the bag is compostable

The accent matters because:

• è = is
• e = and

So in this sentence:

• è with an accent = is
• e without an accent = and

That is a very common distinction in Italian.

In Italian, adjectives often come after the noun, especially when they describe a factual quality or category.

So:

• vetro riciclabile = recyclable glass
• sacchetto compostabile = compostable bag

In this sentence, the structure is:

• noun + è
  • adjective

So literally:

• The glass is recyclable
• The bag is compostable

This is completely normal word order in Italian.

Yes. Italian adjectives usually agree in gender and number with the noun they describe.

Here both nouns are:

• masculine
• singular

So the adjectives stay in the singular form:

• riciclabile
• compostabile

A useful thing to notice is that adjectives ending in -abile usually have:

• singular: -e
• plural: -i

For example:

• il vetro è riciclabile

• i vetri sono riciclabili

• il sacchetto è compostabile
• i sacchetti sono compostabili

So even though the nouns are masculine, the singular adjective still ends in -e.

Because il sacchetto is a separate noun phrase.

Italian normally repeats the article when you mention two separate nouns:

• il vetro e il sacchetto

This is like saying the glass and the bag.

You would not normally say il vetro e sacchetto.

Also, the sentence has two full clauses joined by e:

• Il vetro è riciclabile
• il sacchetto è compostabile

That repetition makes the sentence clear and natural.

Not in this exact sentence, because the two things have different adjectives:

• glass = riciclabile
• bag = compostabile

So you need both parts:

• Il vetro è riciclabile e il sacchetto è compostabile.

If both nouns had the same description, you could combine them more easily, for example:

• Il vetro e il sacchetto sono riciclabili.

But in your sentence, the two items are described differently, so the repeated è is natural.

This is a very useful distinction:

• riciclabile = recyclable → it can be recycled
• riciclato = recycled → it has already been recycled

So:

• Il vetro è riciclabile = the glass can be recycled
• Il vetro è riciclato = the glass is recycled / made from recycled material, depending on context

The same idea applies in English: recyclable is not the same as recycled.

Sacchetto usually means bag or small bag.

It comes from sacco (sack, bag) plus the ending -etto, which often gives a smaller or lighter sense. In everyday language, though, sacchetto is very commonly just the normal word for a bag, especially in contexts like:

• shopping bag
• plastic bag
• food bag
• waste bag

So in environmental or packaging contexts, il sacchetto is a very natural choice.

A simple pronunciation guide:

• riciclabile ≈ ree-chee-kla-BEE-leh
• compostabile ≈ kom-po-sta-BEE-leh

A few tips:

• c before i is pronounced like ch in cheese
• the stress in both words falls on -bi-
• the final -e is pronounced, not silent

Also:

• vetro ≈ VEH-tro
• sacchetto ≈ sak-KET-to
• è sounds like eh

E is the normal word for and.

Italian sometimes uses ed before a word that also begins with e to make pronunciation smoother, for example:

• io ed Elena

But in modern Italian, ed is limited and much less common than learners sometimes expect.

In your sentence, the next word is il, not a word beginning with e, so e is the only natural choice:

• Il vetro è riciclabile e il sacchetto è compostabile.

Yes. Italian often has more than one natural way to express the same idea. For example:

• Il vetro si può riciclare e il sacchetto si può compostare.

  • literally: The glass can be recycled and the bag can be composted

• Il vetro va riciclato e il sacchetto va compostato.

  • literally: The glass should be recycled and the bag should be composted

Your original sentence is a bit more like labeling or classification language:

• riciclabile = recyclable
• compostabile = compostable

So it sounds especially appropriate on packaging, signs, or waste-sorting instructions.