Предмет: Химия, автор: hfan8649

Реакция кислот с металлами

Ответы

Автор ответа: lucifermud

0

Ответ:

Кислоты взаимодействуют с металлами, стоящими в ряду активности металлов левее водорода. В результате реакции образуется соль и выделяется водород. Можно сказать, что металлы, расположенные в ряду активности левее, вытесняют водород из кислот.

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Математика, автор: yanapav714

0,8×(0,07у+600х) - 0,04×(0,4у+7000х)
при х=0,01,у=100
ПОМОГИТЕ ПОЖАЛУЙСТА! 30 БАЛЛОВ ДАЮ!

2 года назад

Предмет: География, автор: Irina200256

Самые бедные почвы распространены:
а)в Африке;
б)в Австралии;
в)в Антарктиде;
г)в Северное Америке.

2 года назад

Предмет: Английский язык, автор: Cinhron

1 Put the verbs in brackets into the correct tense.

1 If Helen sees Jack, she .......... (call) you.

2 If Helen hadn't woken up late, she .......... (not/miss) the bus.

3 If I .......... (know) Tom was sad, I would have tried to help him.

4 If I were you, I .......... (stop) smoking.

5 If you mix blue and red, you .......... (get) violet.

6 If I .......... (earn) more money, I would buy a really big house!

7 If you put water in the freezer, it .......... (become) ice.

8 If John .......... (not break) his leg, he could have played in the finals.

9 If they play well, they .......... (win) the match.

10 If Helen .......... (not/have) to work tonight, she would come with us.

11 If Betty .......... (clean) her bedroom, she can go out with her friends.

12 If my ancle .......... (come) to visit us, we'll take him out to the theatre.

================================================================

3 Put the verbs in brackets into the correct tense.

1 A: You should have come to the concert. It was great.
B: If I .......... (not/be) busy, I .......... (come) with you.

2 A: What should I wear at the party tonight?
B: If I .......... (be) you, I .......... (wear) that black silk dress!

3 A: If you .......... (go) to the supermarket, .......... (you/buy) me a carton of milk?
B: Sure. Anything else?

4 A: If I rent a DVD for us tonight, .......... (you/watch) it?
B: Yes, as long as you rent a comedy!

5 A: What are you doing at the weekend?
B: Well, we don't know yet. If the weather .......... (be) good, we .......... (go) on a picnic.

6 A: Why are you so late today, Brian?
B: I'm really sorry. If I .......... (not/get) stuck in traffic, I .......... (not/be) so late.

2 года назад

Предмет: Английский язык, автор: bibikalexa2

Раскрыть скобки употребляя глаголы в одном из времени Present Simple Past Simple Present Continuous Past Continuous.
1) 10. Why he (not to go) to school yesterday?-He (to be) ill.He (to stay) in bed the whole day.11. You (to work), when I phoned you last night?Yes, i (to work).12. Why they (to sit) here now?They (to wait) for their doctor.The doctor (to be) late.13. He (to ask) you to work late last Tuesday?-No, he (not to ask).I (to decide) to work late myself.14. Yesterday (to be) a typical summer day, the sun (to beat) down, the sky (to be) cloudless.15. Yesterday, when he (to open) the door, he (to under stand) that he (to do) it with a wrong key 16. Every day she (to return) home, (to have) dinner and (to rest) But yesterday she (not to rest) after dinner, she (to work) at her report the whole evening.

8 лет назад

Предмет: Русский язык, автор: ульяна558

Помогите прошу, умоляю, надо срочно!!!!

8 лет назад