Learn Hardcore Russian: Пакет стоит на столе.

Although стоить can mean "to cost" in other contexts, here it means "is standing" or "is located". The sentence describes where the пакет is placed, not its price.

Which word in the sentence functions as the subject?

The word пакет serves as the subject. It is in the nominative case, which is used for the subject of the sentence.

What is the role of the phrase на столе in this sentence?

The phrase на столе indicates the location of the subject. It literally means "on the table", using the preposition на with the noun стол in the prepositional case to express where the пакет is.

Why is the noun стол in the form столе?

The noun стол appears as столе because it must agree with the preposition на by taking the prepositional case. This case is used to indicate location in Russian.

Why is the verb стоит chosen over лежит in this context?

The verb стоять (of which стоит is the third person singular form) implies that the object is standing upright. In contrast, лежать would suggest that the object is lying down. The choice emphasizes the position of the пакет as being upright on the table.

Does the word order in Пакет стоит на столе affect its meaning?

Yes, the word order follows a standard pattern: subject (пакет), verb (стоит), and adverbial (location) phrase (на столе). While Russian allows some flexibility in word order for emphasis or stylistic reasons, this structure clearly specifies who or what is doing the action and where the action is taking place.