Question

3. Уравняйте химические реакции и определите их тип (4 балла): Уравнение реакции Уравненное химическое уравнение Тип химической реакции A) Сa + О2 → CaO B) Al + HCl → AlCl3 + H2 C) H2O2 →H2O + O2 D) Fe2O3 + HCl → FeCl3 + H2O срочно пожалуйста помогите ​

Answer 1

$A)\ 2Ca+O_2\ \rightarrow\ 2CaO$  (реакция соединения)

$B)\ 2Al+6HCl\ \rightarrow\ 2AlCl_3+3H_2$  (реакция замещения)

$C)\ 2H_2O_2\ \rightarrow\ 2H_2O+O_2$  (реакция разложения)

$D) \ Fe_2O_3+6HCl\ \rightarrow\ 2FeCl_3+3H_2O$  (реакция обмена)

Answer 2

A) Сa + О2 → CaO

This is a synthesis reaction, also known as a combination reaction. In this type of reaction, two or more substances combine to form a single product. The equation can be balanced as follows:

2Ca + O2 → 2CaO

B) Al + HCl → AlCl3 + H2

This is a single replacement reaction, also known as a displacement reaction. In this type of reaction, one element replaces another element in a compound. The equation can be balanced as follows:

2Al + 6HCl → 2AlCl3 + 3H2

C) H2O2 → H2O + O2

This is a decomposition reaction. In this type of reaction, a single compound breaks down into two or more simpler substances. The equation is already balanced.

D) Fe2O3 + HCl → FeCl3 + H2O

This is a double replacement reaction, also known as a metathesis reaction. In this type of reaction, the positive and negative ions of two compounds switch places, resulting in the formation of two new compounds. The equation can be balanced as follows:

Fe2O3 + 6HCl → 2FeCl3 + 3H2O

Please note that the balanced equations provided above are based on the information given and may vary depending on the specific conditions of the reaction.