1) The gas produced as a result of the reaction between concentrated hydrochloric acid and potassium
2) As a result of the reaction between concentrated hydrochloric acid and a strong orange-colored oxidizer, a green solution was formed and a yellow-green toxic gas was released. This gas reacted with hydrogen in the presence of light. The resulting gas was dissolved in a concentrated solution of nitric acid. A toxic yellow-green gas was again released, which then reacted with iron. Write the equations for the described reactions.
3) The molten potassium chloride was subjected to electrolysis. The gas formed at the anode was dissolved in water. The resulting strong acid then reacted with iron, producing a colorless combustible gas. The gas that was released during the electrolysis of the molten potassium chloride on the anode was passed through the resulting salt solution. Write the equations for the described reactions.
4) The gas produced as a result of the reaction between manganese (IV) oxide and concentrated hydrochloric acid was passed through a solution of potassium hydroxide under heating. One of the salts obtained in the process reacted with concentrated hydrochloric acid, producing the same gas, which was then passed through lime water at room temperature. Write the equations for the described reactions.
5) The yellow-green gas was absorbed by a cold solution of potassium hydroxide, and the solution was left in the light. After the cessation of the release of colorless gas bubbles, a potassium permanganate acidified with sulfuric acid was added to the solution, resulting in the decolorization of the solution. The toxic gas released in this process was passed through a hot solution of barium water. Write the equations for the described reactions.
6) Hydrochloric acid was added to potassium permanganate. The gas formed was passed through a hot solution of potassium hydroxide. The salt that was separated from the cooled solution was added to a solution of hydrochloric acid and heated, resulting in the release of a yellow-green gas. The mixture of this gas and hydrogen was exploded under illumination. Write the equations for the described reactions.
7) The solid substance formed by the reaction of chlorine with sodium was heated with concentrated sulfuric acid. The gas released was dissolved in water and the solution was added to aluminum sulfide. The resulting salt was isolated and added to a sulfuric acid solution of sodium permanganate, resulting in the release of a yellow-green gas. Write the equations for the described reactions.
Инструкция:
1) Исходной реакцией является реакция между концентрированным раствором водорода хлорида (HCl) и калия перманганата (KMnO4). В результате этой реакции образуется газ, который проходит через горячий раствор гидроксида калия (KOH). Получившаяся смесь соли-оксидатора реагирует с новой порцией концентрированного раствора водорода хлорида, образуя тот же газ. Затем этот газ проходит через холодный раствор гидроксида калия. Уравнение реакции можно записать следующим образом:
2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2↑
2 Cl2↑ + 2 KOH → 2 KCl + H2O
2) Реакция между концентрированным раствором водорода хлорида (HCl) и сильным оранжевым окислителем вызывает образование зеленого раствора и выделение ядовитого желто-зеленого газа. Чтобы обозначить эту реакцию, можно записать следующее уравнение:
2 KMnO4 + 16 HCl → 2 MnCl2 + 2 KCl + 8 H2O + 5 Cl2↑
Совет:
Для лучшего понимания химических реакций рекомендуется изучить основные принципы химии, которые включают в себя структуру атомов, организацию элементов в таблице Менделеева, электронную конфигурацию и балансировку реакций. Изучение основных химических реакций и уравнений также поможет вам лучше понять, как различные вещества взаимодействуют между собой.
Упражнение:
Напишите уравнение для реакции между концентрированным раствором водорода хлорида (HCl) и калия перманганата (KMnO4), если продуктами реакции являются два хлорида марганца (MnCl2), калий хлорид (KCl), вода (H2O) и хлор (Cl2↑).