Химия, опубликовано 03.04.2020 16:26
Какой индикатор следует использовать при стандартизации хлороводородной кислоты по карбонату натрия при титровании до угольной кислоты?
1)Метиловый оранжевый, интервал перехода 3,1-4,4
2)Крезоловый красный, интервал перехода 7,2-8,8
3)Малахитовый зеленый, интервал перехода 11,5-13,2
4)Тимоловый синий, интервал перехода 1,2-2,8
С объяснением
Ответ оставил: Гость
I have a family. I love all my family, mother, father and sister. Family for me - it`s a very important thing. And all family members getting an influence on me.
I like to do many interesting things with my family. We have different hobbies, but do many activities together. We playing computer games, watching TV, listening to music.
If you want to have such a happy family, as me, you should love all your relatives. Don`t swear with them, and follow their interests.
I want to ask British people, how do they keep their families always happy and what should I do in order not to upset my family?
I like to do many interesting things with my family. We have different hobbies, but do many activities together. We playing computer games, watching TV, listening to music.
If you want to have such a happy family, as me, you should love all your relatives. Don`t swear with them, and follow their interests.
I want to ask British people, how do they keep their families always happy and what should I do in order not to upset my family?
Химия, опубликовано 09.01.2019 16:01
Химия, опубликовано 09.01.2019 16:01
Химия, опубликовано 09.01.2019 16:01