Предмет: Химия, автор: popovicmaksim105

напишіть усі рівняння реакцій, розставити коефіцієнти​

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Ответы

Автор ответа: hahaharlekin
0

4FeO + O2 = 2Fe2O3

SiH4 + 2O2 = SiO2 + 2H2O

Mn2O3 + O2 = 4MnO2

NH3 + 3O2 = 2N2 + 6H2O

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Предмет: Английский язык, автор: Wiiiwowlwlwl
Умоляююю помогите I __brushed__ my teeth three times yesterday.
2. It was hot in the room, so I _______________ the window.
3. The film was very long, it ____________ at 7.15 and _____________ at 10 o’clock.
4. When I was a child, I _______________ to be a doctor.
5. The accident ______________ last Sunday afternoon.
6. The weather is nice today, but yesterday it _______________ all day.
7. We _____________ our holiday last year. We ___________ at a very nice place.
8. Anna’s grandfather _______________ when he was 90 years old.

Exercise 3. Complete the sentences with the past simple form of the verbs below.
stop study travel want watch
a) I __________________ an awful film on TV last night.
b) I __________________ to get closer to the monkeys in the zoo.
c) She __________________ around Asia last summer.
d) My brother __________________ biology at university.
e) The rain __________________ after lunch.

Complete the sentences with the past simple form of the verbs below.
chat marry return share visit
1) I __________________ the safari park with my school.
2) We __________________ a taxi from the airport with another couple.
3) He __________________ home from Africa last month.
4) She __________________ an explorer from Egypt.
5) They __________________ online last night.

Exercise 4. Make up the sentences using the following verbs and the time phrases.
chat
like
travel
stop
walk
watch
learn
live
start
study
want
work

1. When I was a child, I ______________________________________.
2. Last night, _______________________________________________.
3. Five years ago, ____________________________________________.
4. Last Christmas, ____________________________________________.
5. Six months ago, ____________________________________________.
6. Before the lesson, __________________________________________.
7. An hour ago, ______________________________________________.
8. This morning, _____________________________________________.