Предмет: Химия, автор: prihodkoola0301

За допомогою. Переодичної системи визначте атомні маси елементів: Алюміній,Силіцій,Сульфур,Кальцій, Бром
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Ответы

Автор ответа: Cuutee
0

Ответ:

27,28,40,80

пжпжажрсбвжмжи


prihodkoola0301: А чому 4?
prihodkoola0301: Там же 5 довжно бути
Cuutee: ой, у сульфура 32
Cuutee: и дальше все идёт по порядку
prihodkoola0301: Спасибо большое зато я вам аомогла дала бали а ви мне помогли
Cuutee: тип того
prihodkoola0301: :))
Интересные вопросы
Предмет: Английский язык, автор: markvasad
Раскройте скобки, употребляя глаголы в Present Perfect, Present Simple, Present Continuous, Present Perfect Continuous, Past Simple или Past Continuous.

Переписать все предложения целиком в тетрадь, выделить временные слова—подсказки, формулу времени и кратко в скобочках после каждого предложения написать название времени (Pr.P./Pr.S./Pr.C./Pr.P.C./P.S./P.C).

Например: She always goes to school (Pr.S.).

1.This man (to be) a writer. He (to write) books. He (to write) books since he was a young man. He already (to write) eight books. 2. What you (to do) here since morning? 3. Lena is a very good girl. She always (to help) her mother about the house. Today she (to help) her mother since morning. They already (to wash) the floor and (to dust) the furniture. Now they (to cook) dinner together. 4. He (to run) now. 5. What they (to do) now? — They (to work) in the reading room. They (to work) there for three hours already. 6. With whom you (to discuss) this question yes¬terday? 7. I (to see) this film this week. I like it very much. 8. When I (to enter) the kitchen, my mother (to cut) some cabbage. She (to cook) dinner. 9. They (to go) to the Hermitage last week. 10. After school yesterday he (to come) home, (to have) dinner, (to read) an article from the latest magazine and (to begin) doing his homework.