Задачі на тему «Розчини».1. Скільки солі та води необхідно для отримання:а) 180 грозчину з масовою часткою солі 3%;б)320 г розчину з масовою часткою солі 20%;​

Объяснение:

to express the purpose of actionI believe that, indeed, you need to lead a healthy lifestyle,

because bad habits, unhealthy diet and bad

self-motivation has a very negative effect on duration and image

human life.

To lead a healthy lifestyle, the first thing to do is

motivate yourself to exercise, eat healthy, and quit

from bad habits. After all, without a motive (goal), a person performs actions

less willing and less productive. The next step should be

methodical performance of certain actions (whether it be exercises, running, dancing

etc.) and compliance with the daily routine. It is an essential part of a healthy

lifestyle.

And then the improvement in health will not be long in coming, because you

created all the prerequisites for improving their quality of life.

I would also like to say about the spiritual component of a healthy image

life, because when you walk cheerful, joyful, contented,

open and ready to tackle complex problems, the body will feel

much better than before.

Based on the above, we can conclude that healthy

lifestyle is an essential part of a happy and long life

1) Fe2O3 +6 HCI =2FeCl3 +3 Н2О

2)2 NO + O2=2NO2

3) N2 + O2 =2NO

4) CaCO3 =CaO + CO2

5) Аl203+ 3H2SO4 =Al2(SO4)3 + 3H20

6) H2 + CI2=2HCI

7) 4Li + O2=2Li2O

8) Fe2O3 + 2Al=Al2O3 +2 Fe

9) CuO + 2HCI = CuCl2 + H2O

10) 2NH3 =N2 +3 H2

11) Fe2O3 + 3H2=2Fe +3 Н2О

12) Zn + 2HCI =ZnCl2 + H2

13. 3NaOH + H3PO4 = Na3PO4+3 Н2О

14. ZnO +2 HCI = ZnCl2 + H2O

15. 2Cu(NO3)2 =2CuO+3O2+4NO

16. 3KOH +AlCl3 =3KCl+ Al(OH)3

17) 3Mg+ 2H3PO4 = Mg3(PO4)2 + 3H2

Объяснение:

реакции обмена: 1, 5, 9, 13, 14, 16.

реакции замещения: 8, 11, 12, 17.

реакции соединения : 2, 3, 6, 7.

реакции разложения: 4, 10, 15.