Вопрос по химии:

Прошу помогите с химией 🙏🙏🙏Составьте структурные формулы гомологов ацетилена (тройная связь - у первого ат. С). Назовите эти вещества.

Вариант - 1: C3H4, C6H10

Вариант-2: C4H6, C5H8

Вопрос по другим предметам:

Вопрос по истории:

Срочно. Краткий конспект (ДЛЯ ПЕРЕПИСИ В ТЕТРАДЬ) о Княжении Ивана III и Василия III

Вопрос по английскому языку:

Past Simple or Past Continious. 1. What he (do) the whole evening yesterday?

 2. At half past six yesterday, we(to have) dinner.

 3. Chris (to fly) to Spain last spring?

 4. Children(to sleep) when their father came home.

 5. Last Sunday, we(to plant) a tree in our garden.

 6. She (to cook) dinner when her daughter (come) home

Вопрос по английскому языку:

1 Rewrite the following sentences into the passive

1 John Napier designed the costumes for Cats.

2 You cannot take pets into the theatre.

3 The company will publish the new Harry Potter book next month.

4 They have translated the book into 25 languages.

5 The chef is preparing the food.

6 They will open the opera house next week.

7 You should send this fax right now.

8 They had cooked the meal before the lights went off.

9 Puccini composed many famous operas.

10 They are building a new bridge.