Question

Help!!! 1.Расставьте коэффициенты, укажите тип химических реакций: A. Al2O3 + H2SO4 → Al2(SO4)3 + H2O. B. H2 + Cl2 → HCl. 2.Восстановите пропущенную запись, укажите тип химической реакции: A.Mg + 2HCl → ? + H2. B. 2Na + ? → 2NaCl.

Answer 1

1.

1) Al2O3+3H2SO4=Al2(SO4)3+3H2O(обмен)

2) H2+Cl2=2HCl(соединение)

2. 

Mg+2HCl=MgCl2+H2(замещение)

2Na+Cl2=2NaCl(cоединение)

Answer 2

AL2O3+3H2SO4=AL2(SO4)3+3H20 реакция обмена

 H2 + Cl2 → 2HCl реакция соединения

.Mg + 2HCl → H2 + MgCl2 реакция замещения

2Na+Cl2= 2NaCl реакция соединения

Answer 3

Balancing Chemical Equations and Identifying Reaction Types

Let's address each part of your question separately.

Balancing and Identifying Reaction Types

A. The chemical equation A can be balanced as follows: - Balanced Equation: Al2O3 + H2SO4 → Al2(SO4)3 + H2O - Type of Reaction: This is a double displacement reaction.

The balanced chemical equation is: ``` Al2O3 + 3H2SO4 → Al2(SO4)3 + 3H2O ```

The type of reaction is a double displacement reaction, also known as a metathesis reaction. This type of reaction involves the exchange of ions between two compounds.

Source: [[1]]

B. The chemical equation B can be balanced as follows: - Balanced Equation: H2 + Cl2 → 2HCl - Type of Reaction: This is a combination reaction.

The balanced chemical equation is: ``` H2 + Cl2 → 2HCl ```

The type of reaction is a combination reaction, also known as a synthesis reaction. In this type of reaction, two or more reactants combine to form a single product.

Source: [[2]]

Completing the Missing Information and Identifying Reaction Types

A. The missing product in the reaction Mg + 2HCl → ? + H2 can be completed as follows: - Balanced Equation: Mg + 2HCl → MgCl2 + H2 - Type of Reaction: This is a single displacement reaction.

The balanced chemical equation is: ``` Mg + 2HCl → MgCl2 + H2 ```

The type of reaction is a single displacement reaction, also known as a substitution reaction. In this type of reaction, an element replaces another element in a compound.

Source: [[3]]

B. The missing product in the reaction 2Na + ? → 2NaCl can be completed as follows: - Balanced Equation: 2Na + Cl2 → 2NaCl - Type of Reaction: This is a combination reaction.

The balanced chemical equation is: ``` 2Na + Cl2 → 2NaCl ```

The type of reaction is a combination reaction, also known as a synthesis reaction. In this type of reaction, two or more reactants combine to form a single product.

Source: [[4]]

I hope this helps! If you have any more questions or need further assistance, feel free to ask.