Предмет: Химия, автор: Sonya04

Дописать уравнение.Уравнять реакцию ионно-электронным методом
MgI2+H2O2+HCl=

Ответы

Автор ответа: Аноним
2
2I- -2e- = I2                           | 2 | 2 | 1 |

H2O2 +2e- + 2H+ = 2H2O      | 2 |    | 1 |;

2I- + H2O2 + 2H+ = I2 + 2H2O;

MgI2 + H2O2 + 2HCl = I2 + MgCl2 + 2H2O.
Sonya04: Br2+Cl2+H2O=:))
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Русский язык, автор: aisha2008
Напиши слова по их значению.
1. Дорога с равными рядами деревьев -
2. Собрание каких-либо предметов, марок, значков -
1 год назад
Предмет: Окружающий мир, автор: Sinyakova
Помогите !!! Как рассказать о поверхности моего края ?! Я нигде не нашла ответ ! Я живу в Свердловской обл.
1 год назад
Предмет: Английский язык, автор: DunyaKerimov
Exercise 1. Complete the sentences, using the verbs in brackets in The Present Simple Tense
1)I_________to bed at 11.00 p.m. (go)
2)She________funny jokes. (tell)
3)Jack_________fluent French. (speak)
4)My sister and I often_________newspapers in English.
(read)
5)Their son_________at Oxford University. (study)
6) People__________personal computers at home. (use)
7)It__________him half an hour to get home from the
Institute.
(take)
8)They usually_______home by bus. (go)
9)I________him in the office almost every day. (see)10)Frank almost always        _________before
breakfast. (shave)11)Sue’s husband usually     ________very hard. (work)
12)It_________a lot here in winter. (snow)
           Exercise 2. Form negative sentences, using the
words in bracketsExample: I _________to the radio in the morning. (listen)I don't listen to the radio in the morning.1)I_______ the dog for a walk early in the morning.
(take)         2)She________   all
the food in the nearest supermarket. (buy)3)Jane_________         in the Medical Centre every day. (work)4)They_________        me
with my homework. (help)
5)My parents______ coffee in the evening. (drink)
6)We________to football matches every Sunday. (go)
7)It________ them three hours to get to their country
cottage.(take)
8)Julia___________ very early. (get up)
9)This car_______ much money — it’s rather old. (cost)
10) My friends________ in a bank. (work)
11) It________ in this place in summer. (rain)
12) I_________ to the college on foot. (go)
          Exercise 3. Complete the
sentences, according to the answersExample: When
do you get up every morning? => I normally get up at
7 o’clock.
1)__________to the radio? — I listen to it in the
morning.
2)__________live? — He lives in Newcastle.
3___________work every day? — She usually finishes at
5.30.
4)__________go to a sports club? — I go to a sports
club
once a week.
5)__________in your country? — It often snows in January.­-
6)__________ like? — My sister likes love songs.
7)__________teach? — He teaches businessmen.
8)__________at weekends? — They take the children to
the zoo.
9)__________ close the windows at night? — Because
it’s
rather cold.
10)_________play chess? — I play it very well.
11)_________take you to get there? — About an hour by
bus..
12)_________do? — She is a manager.
13)_________in that flat? — My mother does.
14)_________cost? — These shoes cost about 50$.15)_________prefer? — I prefer talk shows.   
1 год назад
Предмет: Математика, автор: kristinakaktus
Помогите пожалуйста построить машину
(декарт система координат) заранее спасибо
7 лет назад
Предмет: Алгебра, автор: yulia8919
Скоротіть дріб...... ​
7 лет назад