Предмет: Химия, автор: QuietRain

Здійснити перетворення:
1) Na2O → NaOH → Na2CO3 → CO2 → BaCO3 → BaO
2) Li → Li2O → LiOH → Li2CO3 → CO2 → (NH4)2CO3

Ответы

Автор ответа: us122
1

Ответ:

1) Na2O + H2O = 2NaOH

2NaOH + CO2 =Na2CO3 + H2O

Na2CO3 + 2HCl = 2NaCl + CO2 + H2O

CO2 + Ba(OH)2 = BaCO3 + H2O

BaCO3 -> BaO + CO2

2) 4Li+O2=2Li2O

Li2O+Н2О=2LiOH

2LiOH+H2CO3=Li2CO3+2H2O

Li2CO3+2HCl=2LiCl+H2O+CO2

2NH3+CO2+H2O=(NH4)2CO3

Объяснение:

я

Похожие вопросы
Предмет: Английский язык, автор: grekablya228
ДОПОЛНИТЕЛЬНЫЙ МАТЕРИАЛ К УРОКУ I My household duties I live in a family, which consists of father, mother and me. Everyone in our family has his duties at home. And, of course, I have my duties too. I like to help my parents, and it is not difficult for me. Every Sunday I clean my room. I begin with the cleaning of carpets. I usually take a vacuum cleaner and turn it on and then clean. Then it comes the turn to sweep the floor, to dust the furniture. I try to do this work in a proper way. Besides, one of my duties is to water the flowers. I do it twice a week. We have a lot of flowers in our flat and all of us like them very much. Besides, my duties include some kind of shopping. I usually go to the shop to buy bread, milk and some other food. It is not difficult for me because the shop is near our house. I think that there is nothing bad in helping parents. I under- stand my parents quite well, because they are too busy at work. My parents also try to understand me and allow me to go to night clubs with my friends and to invite my friends to our place. We are a happy, friendly family.
Vocabulary cleaning the carpets - чистка ковров
vacuum-cleaner - пылесос the turn - очередь
to dust the furniture - вытирать пыль с мебели
in a proper way - правильно twice a week - 2 раза в неделю to our place - к нам friendly - дружная
Questions
1. What kind of family is it?
2. Do they all have duties at home?
3. What does the boy do on Sundays? What work does he like to do?
4.What does the cleaning of the room include?
5. What other duties does he have?
6. Do they understand each other quite well in this family?
7. Is it difficult for a boy to help his parents?​