Question

Химический элемент А образует высший оксид состава R2O3, а химический элемент Б- водородное соединение состава H2R. Оба элемента находятся в 3-м периоде. Определите эти элементы. Напишите формулы их высших оксидов и уравнение реакции между простыми веществами , образованными этими элементами.

Answer 1

1. Al2O3-высший оксид  (елемент Al)
2. H2S-водородное соедининение; SO3-высший оксид  (елемент S)

Answer 2

Identification of Elements and their Higher Oxides

The chemical element A forms a higher oxide of the composition R2O3, while the chemical element B forms a hydrogen compound of the composition H2R. Both elements are located in the 3rd period.

To determine the elements and their higher oxide formulas, let's analyze the given information.

1. Chemical element A: - Forms a higher oxide of the composition R2O3. - Located in the 3rd period.

2. Chemical element B: - Forms a hydrogen compound of the composition H2R. - Located in the 3rd period.

Based on this information, we can determine the elements and their higher oxide formulas as follows:

1. Chemical element A: - Forms a higher oxide of the composition R2O3. - Located in the 3rd period. - Element A is Aluminum (Al). - The formula for its higher oxide is Al2O3.

2. Chemical element B: - Forms a hydrogen compound of the composition H2R. - Located in the 3rd period. - Element B is Nitrogen (N). - The formula for its hydrogen compound is H2N.

Reaction between the Elements

To determine the reaction between the simple substances formed by these elements, we can write the balanced chemical equation.

The reaction between Aluminum (Al) and Nitrogen (N) can be represented as follows:

2 Al + 3 N2 → 2 AlN

In this reaction, two moles of Aluminum react with three moles of Nitrogen gas to form two moles of Aluminum Nitride.

Please note that the reaction equation provided is a balanced equation, meaning that the number of atoms of each element is the same on both sides of the equation.

I hope this helps! Let me know if you have any further questions.