Предмет: Химия, автор: lll91

помогите решить li+o2=li2o ОВР

Кира1551: что

Ответы

Автор ответа: Gold08ru

Ответ 4Li+O2=2Li2 O.

Gold08ru: Помог?

lll91: ответ я знаю, забыла как расписывать решение

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Химия, автор: neboizemlia

ПЖ СРОЧНО 1 ТЕСТОВЫЙ ВОПРОС ДАЮ 25 БАЛОВ
Позначте кислоту, що є ізомером бутилетаноату.
Відповідь:
А бутанова
В етанова
Б пентанова
Г гексанова

1 год назад

Предмет: Английский язык, автор: scths5qt9y

321. The phone is ringing. I … … answer.
A) will B) am going C) has to D) had to

322. I think I … … it.
A) will do B) do C) is going to do D) did

323. Tomorrow … … Friday.
A) will be B) is C) was D) were

324. Sam’s plane … … at midnight.
A) will arrive B) is going to arrive C) arrives D) is arrived

325. You … great!
A) is B) are C) be D) am

326. We … … a holiday last year.
A) didn’t have B) haven’t had C) hadn’t have D) will not have

327. My parents … … to the USA many times.
A) have been B) were C) have being D) were being

328. I … … a new dress last week.
A) have bought B) bought C) had bought D) has bought

329. … … raining yet?
A) Did it stop B) Is it stopped C) Has it stopped D) Have it stopped

330. Don’t worry about your letter. I … … it the day before yesterday.
A) sended B) have sent C) sent D) will send

331. I … … my glasses. I can not find them.
A) losed B) have lost C) lost D) has lost

332. When … … school?
A) had Jill finished B) has Jill finished C) did Jill finish D) will Jill finishes

333. When I was a child, I … … late for school.
A) have always been B) was always C) had always been D) am always

334. We … … Peter this week.
A) didn’t see B) haven’t see C) haven’t seen D) hasn’t seen

335. –Have you got any money? −Yes, I … … it from my brother.
A) borrowed B) have borrowed C) did borrowed D) will borrow

336. −Where is Jane? − She … … the shops. She’ll be back soon
A) was to B) has gone to C) has been to D) will go to

337. My husband … … in the bank for three years since 1990 to 1993.
A) has worked B) had worked C) worked D) works

338. One of the passengers … … in that accident.
A) has died B) died C) dies D) has been died

339. … … today?
A) Did the post come B) Has the post come C)Has the post came D) Does the post come

340. I saw a light in your window as I … … by.
A) passed B) was passing C) passes D) will be passing

341. Yesterday as I was walking down Cherry Lane, I … … Thomas, an old friend of mine.
A) met B) was meeting C) will meet D) will have met

342. His elder brother said that he … … to enter Leeds University.
A) went B) was going C) will go D) goes

343. While my son … … for my call, somebody knocked at the door.
A) waited B) was waiting C) will be waiting D) was waited

344. We … … about him when he suddenly came in.
A) just talked B) were just talking C) was talking D) has been talking

345. I … … early and got out of bed.
A) woke up B) had woken up C) will wake up D) wokes up

346. I got out of bed an hour later I … … .
A) woke up B) had woken up C) has woken up D) wokes up

347. We were late. The meeting … … an hour before.
A) started B) had started C)starts D) had been started

348. She was the most delightful person I… … .
A) ever met B)had ever met C) ever meet D) meet

349. That morning she dressed, … somebody, and went out.
A) phoned B) had phoned C) phones D) has phoned

350. That morning she went out after she … … somebody.
A) phoned B) have phoned C) phones D) has phoned

351. The sun … … , it got dark, and we went home.
A) set B) sat C) sats D) had set

352. The Hills were in a hurry, but they … … a taxi and managed to arrive on time.
A) took B) had taken C) taken D) tooks

353. The Hills managed to arrive exactly on time because they … … a taxi.
A) took B) had taken C) taken D) has taken

354. He said he … … the lamp post.
A) broke B) had broken C) has broken D) brakes

355. After I … … all my letters, I went to the kitchen to make coffee.
A) wrotes B) had written C) written D) has written

356. Why are you looking so unhappy? I … … my purse.
A) have lost B) had lost C) lost D) lose

357. I … … some photos to be developed. Are they ready?
A) have left B) had left C) left D) have leave

358. Tell Tommy about these islands. He … … about them.
A) has never heard B) had never heard C) will never heard D) never heard

359. I’m so happy to see you again. I … … you since I left London.
A) haven’t seen B) hadn’t seen C) hadn’t see D) wasn’t seen

360. He quickly forgot everything he … … at school.
A) learnt B) had learnt C) had been learning D) was learning

1 год назад

Предмет: Українська мова, автор: Aretuko035

Помогите срочно очень треба

1 год назад

Предмет: Окружающий мир, автор: annalepeshkina300408

ДАЮ 15 БАЛЛОВ!
Напишите 6-8 пунктов о ПОСЛЕДСТВИЯХ положительного влияния человека на природу.

7 лет назад

Предмет: Русский язык, автор: Hatalca

Подбери по 3 имени прилагательных к именам существительным, ( ставь вопрос в скобках к и.прил.)

7 лет назад