Предмет: Химия, автор: oxmark

Укажите какие группы веществ реагируют с разбавленной серной кислотой : 1) Al , sio2 , h2o 2)pbcl2, ca, hcl 3) ba(no3)2, cao, koh 4) mgo,k2co3, fe(oh)3

Ответы

Автор ответа: Irina108

0

ну я думаю тут может только 3 и 4

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: История, автор: Весёлыйкотёнок

Почему в Италии многие не увидели с самого начала, что стране угрожает опасность, что это не смена правительства,
а смена режима?

6 лет назад

Предмет: Английский язык, автор: vvasilkovl9

вместо пропусков вставить слова
Everybody knows that music plays a very___________ part in people’s life. Actually, we cannot imagine our life without music. We can listen to music everywhere: _________,__________,_________, etc. Music helps us ________and __________.
We know many musical genres and styles, for example, ________,________,________,________and others. Some people have musical ear and study at _______ _______, and learn to play _____________instruments and even to _________ music, others prefer ________tunes and enjoy singing____________ songs.
As for me, I often enjoy listening to_______ and _________.
Sometimes people go to _________concerts and opera _________ where the first nights are held to full _________. To my mind, classical music is rather _________to understand and it needs special education.
There are a lot of famous _________in the world and in Russia whose works are real masterpieces, for example, _______,______,______ and others.
Personally, I have also my favourite groups and singers, for example, I adore listening to________ because the music is so________ and the lyrics is full of_________.
Of course, tastes________, but it goes without saying, music is the beauty of the world.

6 лет назад

Предмет: Английский язык, автор: Аноним

СРОЧНО ДАМ 100 БАЛЛОВ
Match the phrases 1-10 with a-j to form sentences.
1 What time
2 What would you do
3 Do nurses
4 If we went by coach
5 If you needed a ticket for the disco, if
6 I had to leave early last night
7 Do you have to do military service
8 The world would be a better place
9 You mustn't eat or drink
10 Would you wear a tie a have to wear uniforms?
B I could get you one.
C it would be cheaper.
D if you lost your passport?
E can you get up at weekends?
F if everybody had a job. g because I wasn't well.
H in your country?
I if you workеd in an office?
J anything at your desk.

6 лет назад

Предмет: Геометрия, автор: alenuchca

S=a*DD1=a*a*2=2*a^2 что это значит

9 лет назад

Предмет: Обществознание, автор: даянка98

Люди какой профессии отыскивают полезные ископаемые???

9 лет назад