-
Поясніть який тип будови має гірський кришталь ( SiO2), якщо ця речовина надзвичайно тверда, тугоплавка, не розчинна у воді.
Ответы 1
-
Ответ: Гірський кришталь — мінерал, чистий природний діоксид кремнію, безбарвний, прозорий різновид кварцу, одна з кристалічних модифікацій кремнезему.
Объяснение:
-
Автор:
david564 - 2 года назад
-
6
-
-
Добавить свой ответ
Еще вопросы
-
Дві сторони трикутника дорівнюють відповідно 1 см і 18 см, а кут між ними становить 135°. Знайдіть третю сторону трикутник
-
Предмет:
Геометрия -
Автор:
hunterstewart - 2 года назад
-
Ответов:
2 -
Смотреть
-
-
4. “Whose is this plane ticket on the floor?” – “Oh, it _____ to me. Thank you”.
a) is belonging
b) belongs
c) has belonged
d) belonged
5. We ______ when someone knocked at the door.
a) talked
b) had talked
c) were talking
d) were talked
6. Ian ______ at the factory long when he was made a manager.
a) hadn’t been working
b) wasn’t working
c) didn’t work
d) wasn’t worked
7. When we got to the airport, I realised I _______ my passport at home.
a) was left
b) had left
c) left
d) had been leaving
8. _____ your time – don’t rush.
a) Tell
b) Find
c) Spend
d) Take
9. Our new coach is popular _____ the whole team.
a) for
b) to
c) by
d) with
10. It was the first time I _______ a live match.
a) was ever seeing
b) had ever been seeing
c) had ever seen
d) was ever seen
11. Karate hurt my hands at first, but I finally ______ it in the end.
a) got used to
b) was used to
c) was used
d) got use to
12. I _____ for the match to begin when suddenly a dog ran onto the pitch.
a) had waited
b) waited
c) was waiting
d) wait
13. There was an explosion in technology _____ the beginning of the 20th century.
a) in
b) at
c) through
d) on
14. Let’s face _____ – we are destroying the environment and we need to do something now.
a) truth
b) facts
c) things
d) information
15. The ______ of the nuclear accident is still unknown.
a) reason
b) cause
c) base
d) motive
-
Предмет:
Английский язык -
Автор:
havendillon - 2 года назад
-
Ответов:
1 -
Смотреть
-
-
даю 100 баллов за ответы на 10 вопросов ( желательно на украинском)
-
Предмет:
Математика -
Автор:
adelaide - 2 года назад
-
Ответов:
1 -
Смотреть
-
- Эгейское море назван в честь лёши?
Топ пользователей
-
Fedoseewa27
35898 -
Askold
2792 -
Pikachu
2228 -
hobbesbowers
2116 -
kaylynnbarron676
1818 -
女fei
1240 -
yulia-kaplina
1158 -
Poinntt
946 -
Bars
930 -
Queenmagic18
754
How much to ban the user?
1 hour
1 day
100 years