Question

Закінчить рівняння реакцій, вкажіть типи: а) Н 2 SO 4 + Ва(NO 3 ) 2 → б) НNО 3 → в) ВаО + Н 2 О →

Answer 1

а)H2SO4+Ba(NO3)2=BaSO4+2HNO3

реакція заміщення

б)HNO3=

реакція розкладу

в)2BaO+H2O=2BaOH

реакція утворення

Answer 2

Balancing Chemical Equations and Identifying Reaction Types

a) Balancing the equation: The given chemical equation is: H2SO4 + Ba(NO3)2 →

To balance this equation, we start by counting the number of atoms for each element on both sides of the equation. We have: - Hydrogen (H): 2 on the left, 2 in Ba(NO3)2, so a total of 2 on the right. - Sulfur (S): 1 on the left, 1 in H2SO4, so a total of 1 on the right. - Oxygen (O): 4 on the left, 6 in Ba(NO3)2, so a total of 10 on the right. - Barium (Ba): 1 on the left, 1 in Ba(NO3)2, so a total of 1 on the right. - Nitrogen (N): 2 on the left, 2 in Ba(NO3)2, so a total of 2 on the right.

To balance the equation, we can start by adding coefficients to the compounds. The balanced equation is: H2SO4 + Ba(NO3)2 → BaSO4 + 2HNO3 [[1]]

Type of reaction: This is a double displacement reaction, also known as a double replacement reaction. In this type of reaction, the positive and negative ions of two ionic compounds exchange places to form two new compounds. In the balanced equation, Ba and H swap places with H and Ba, resulting in the formation of BaSO4 and HNO3. [[2]]

b) Balancing the equation: The given chemical equation is: HNO3 →

To balance this equation, we note that there is only one compound on the left side. Therefore, the balanced equation is: HNO3 → HNO3 [[3]]

Type of reaction: This is a decomposition reaction. In a decomposition reaction, a single compound breaks down into two or more simpler substances. In this case, HNO3 remains unchanged, so it is a decomposition of a single compound into itself. [[4]]

c) Balancing the equation: The given chemical equation is: BaO + H2O →

To balance this equation, we start by counting the number of atoms for each element on both sides of the equation. We have: - Oxygen (O): 1 on the left, 1 in H2O, so a total of 2 on the right. - Barium (Ba): 1 on the left, 1 in BaO, so a total of 1 on the right. - Hydrogen (H): 2 on the left, 2 in H2O, so a total of 2 on the right.

The balanced equation is: BaO + H2O → Ba(OH)2 [[5]]

Type of reaction: This is a combination reaction. In a combination reaction, two or more substances combine to form a single new compound. In this case, BaO and H2O combine to form Ba(OH)2. [[6]]