Предмет: Химия, автор: Vladimirovith

ПОМОГИТЕ ПОЖАЛУЙСТА! СРОЧНО!
ВАРИАНТ 1
( ПО ХИМИИ) ПРОШУ!!

Приложения:

Vladimirovith: я вам дам 20 баллов если вы решите мне доконца эти номера
Аноним: jrtq
Аноним: окей
Vladimirovith: а где буква г)
Vladimirovith: ну что там решил?

Ответы

Автор ответа: Аноним
1
1
а)3Mg+2H3Po4=Mg3(PO4)2+3H2
2AL+6HCL=2ALCL3+3H2
б)SIH4+O2=SiO2+2H2
б)2H2S+O2=2H20+2s
В)CA+2H2O=CA(OH)2+H2
2LI+2H2O=2LIOH+H2
 г)Mno2+2H2so4=Mn(so4)2+2H2O
CuO+2HCl=CuCl2+H2O

2 NAOH+NH4Cl=NACl+NH4OH
BaCl2+K2SO4=BaSO4+2KCl

3 O2+s=S02
количество вещ-ва(S)=19,2/32=0.6 моль
количество вещ-ва(O2)=(s)=0.6 моль (это по уравнению)
объём(02)=0.6*22.4=13.44 л (количество вещества * на молярный оъём(он равен 22,4))



Приложения:

Vladimirovith: ладно давай задачу а потом номер 2
Vladimirovith: а где здесь номер 2и 3
Аноним: ну я же тебе написал номера эти не хватает
Аноним: просто тут задача
Vladimirovith: а номер 2
Аноним: 2 NAOH+NH4Cl=NACl+NH4OH
BaCl2+K2SO4=BaSO4+2KCl
Vladimirovith: там на фотке ничего не видно как то мутно
Vladimirovith: ты можешь мне пожалуйста написать в сообщениях дано и решение этой задачи
Аноним: неа в сообщениях не могу
Vladimirovith: привет поможешь с Химией
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Question 1
Баллов: 1
He ________________ to tell the truth.
Выберите один ответ.
was asking

asked

asks

was asked

Question 2
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The wine that _____________ on the carpet during the party has left an awful stain.
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was spilt

had been spilt

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Was there

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Oh, look! _________ something under the table!
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It is;

It was;

There is;

There was.

Question 5
Баллов: 1
You will have to work _________ if you want to get the degree.
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more hard

lot of harder

a lot harder

more hardly

Question 6
Баллов: 1
I was _______ he had been drinking.
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most surer

sure

more sure

surely

Question 7
Баллов: 1
________________ already dark outside.
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It had been

There had been

There was

It was

Question 8
Баллов: 1
The chair _____________.
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have moved;

was being moved.

has been moved;

Question 9
Баллов: 1
_______________ a printer and a computer on the table?
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There were

Was there

Were there

There was

Question 10
Баллов: 1
I’m sorry about this but _______________ nothing they can do.
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it is

there does

there is

it does

Question 11
Баллов: 1
_____________ only 2 kilometres to the forest.
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There is

It is

There isn't

It was

Question 12
Баллов: 1
It becomes_____ as the winter is coming.
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more coldly

much coldly

more cold

colder

Question 13
Баллов: 1
This necklace _____________ to me by my granny when I was sixteen.
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is given;

was being given;

was given.

Question 14
Баллов: 1
The papers _____________ yet by all the members of the commission.
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aren't signed;

hasn't been signed;

haven't been signed.

Question 15
Баллов: 1
I _____________ a lot of money to do the job.
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were paid;

was paid;

was paided.

Question 16
Баллов: 1
Moscow is ________ St. Petersburg which was founded about six centuries ago.
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older than

as old as

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younger than

Question 17
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honest

honesty

honestly

honester

Question 18
Баллов: 1
A very unusual question _____________ at the last conference.
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was asked;

has been asked;

has been being asked.

Question 19
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________________ a swimming pool in their garden.
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It has been

There is

There were

It is

Question 20
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She is _________ her sister.
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twice as lively than

twice as lively as

the most livelier as

twice more lively as