Предмет: Химия, автор: kshabaniba

знайдіть структурну формулу алкену з молекулярною масою 70. дайте назву та наведіть приклади двух гомологів

Ответы

Автор ответа: Potassium

2

14n = 70

n = 5

C5H10 пентен

Гомологи: C4H8 бутен, C6H12 гексен

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: Rroomann

При якому значені х числа 4х-19,2х-5 і х-1 є послідовними членам геометричної прогресії? Знайдіть ці числа.

5 лет назад

Предмет: Алгебра, автор: linatssssss

обчисліть значення похідної даної функції в точці х0

5 лет назад

Предмет: Английский язык, автор: qq28

1) Lin … in her tree house, when her mum called her.

A used to play B played C was playing

2) At the moment I … really hard.

A studied B was studied C am studying

3) My granddad … tell me stories, when I was young.

A get used to B got used to С used to

4) Mary called her mother … she got home.

A while B as soon as C when

5) This is the skate park … I skate regularly.

A which B where C when

6) Jack is … of spiders.

A scared B scaring C afraid

7) He … TV at 6 o’clock yesterday afternoon.

A was watching B watched C is watching

8) I have a doctor’s appointment. Could you please look… the children?

A up B after C for

9) Put the meat in the fridge or else it will go ….

A on B off C with

10) Jim … sing a song at the party tomorrow.

A sang B is going to C sings

11) My flight to London … at 6 o’clock tomorrow.

A leaves B is leaving C will leave

12) Turtles move … than tigers.

A slower B more slower C the most slow

13) You can study ….

A better B more good C the best

14) He … all the book already.

A has read B is reading C read

15) Let’s take some sandwiches and a … of biscuits with us to the beach.

A carton B packet C can

16) Rose is cleaning out the pond, …?

A doesn’t she B is she C isn’t she

17) You … eat in class.

A can’t B mustn’t C haven’t

18) There is …of chocolate in the fridge. I will make a chocolate cake tomorrow.

A a lot B some C few

19) Very few people … a healthy lifestyle in big cities.

A lead B leave C live

20) We moved to the city because we needed some ....... and quiet.

A fresh B peace C sleep

21) I like watching chat ....... when I want to relax.

A shows B news C reports

22) I do the gardening … Sundays.

A on B in C at

23) Mike ____ any foreign languages.

A isn`t speaking B don`t speak C doesn`t speak

24) There is ___ chocolate on the table.

A much B some C any

25) I think surfing is difficult, but Mike thinks it’s easy as … .

A cake B beans C pie

26) Alex and Kathy … toffee apples all morning, and the kitchen is a mess.

A has made B have made C have been making

27) Jane has been trying to find her lost cat … Monday.

A for B since C on

28) If Mary is too busy to help Paul and Linda to move house, they’ll do it … .

A themselves B theirselves C themselfs

29) Where ... you ... when I saw you yesterday?

A did, go B did, going C were, going

5 лет назад

Предмет: Физика, автор: mrpetrovi4ru

Перечислить источники тока

8 лет назад

Предмет: Математика, автор: регина188

срочно ааааааааааааааа

8 лет назад