Мама повязывает тёплый платок перед выходом из дома.

Мама is the subject of the sentence, so it is in the nominative case. Even though it ends in -а, it is a normal feminine noun of the first declension.

Also, Russian has no articles, so Мама can mean Mom, Mother, or just the mother, depending on context.

The verb повязывать / повязать is used for tying something on, especially something like a scarf, kerchief, or bandage.

Here it suggests that she is putting on the scarf by tying it. That is more specific than a general verb like надевать, which means to put on clothing/accessories more broadly.

So повязывает платок is natural because a платок is often something you tie.

In this verb, по- is part of the lexical meaning of повязывать. It helps form a verb meaning something like to tie on / around.

It does not necessarily mean a little here. Russian prefixes often change the basic meaning of a verb in ways that are partly predictable and partly just vocabulary you learn as a whole.

So it is best to learn повязывать платок as a common combination: to tie on a headscarf/scarf.

Russian imperfective present can often correspond to either:

• is tying
• ties
• sometimes a more general puts on by tying

The exact meaning depends on context.

So Мама повязывает тёплый платок could describe:

• something happening right now
• a habitual action
• a scene in a story

English usually has to choose more explicitly between is tying and ties, but Russian often leaves that open unless context makes it clear.

Платок is the direct object, so it is in the accusative case.

However, платок is:

• masculine
• singular
• inanimate

For inanimate masculine singular nouns, the accusative is the same as the nominative. So:

• nominative: платок
• accusative: платок

That is why the form looks unchanged.

Adjectives in Russian must agree with the noun they describe in:

• gender
• number
• case

Since платок is masculine singular accusative, and it is inanimate, the adjective takes the same form as masculine nominative/accusative:

• тёплый платок

If the noun were feminine, plural, or animate, the adjective form would change.

Not exactly.

• платок usually means a kerchief, headscarf, or sometimes a square scarf/shawl-like cloth
• шарф usually means a long scarf worn around the neck

In this sentence, платок suggests something that can be tied, often on the head or around the neck in a more traditional or cloth-like way.

So even if English translates both as scarf, the Russian words are not fully interchangeable.

The preposition перед normally requires the instrumental case when it means before or in front of.

So:

• выход = nominative
• выходом = instrumental

That is why the phrase is перед выходом = before leaving / before going out.

No, it is a noun: выход = exit, departure, or going out.

In the phrase перед выходом из дома, Russian uses a noun where English might more naturally use a clause such as:

• before leaving the house
• before going out of the house

This is very common in Russian: a noun phrase is often used where English uses before + -ing.

The preposition из means out of / from, and it requires the genitive case.

So:

• nominative: дом
• genitive: дома

That gives:

• из дома = out of the house / from home

This is a very common pattern in Russian:

• из школы
• из магазина
• из комнаты

Because these two forms mean different things:

• из дома = from home / out of the house
• домой = homeward / to home

So:

• выйти из дома = to go out of the house
• идти домой = to go home

In your sentence, the idea is leaving the house, so из дома is the correct choice.

Yes. Russian word order is relatively flexible because case endings show grammatical relationships.

The sentence Мама повязывает тёплый платок перед выходом из дома is neutral and natural. It presents the action first and then the time circumstance.

But other orders are possible, for example:

• Перед выходом из дома мама повязывает тёплый платок.

This version puts more emphasis on before leaving the house.

So the word order can change for focus, style, or emphasis, even though the basic meaning stays the same.