Which one of the following is a double-displacement reaction?

A. Zn (s) + 2HCl (aq) - H2 (g) + ZnCl2 (s)

B. Ba (OH) 2 (aq) + 2HClO4 (aq) - Ba (ClO4) 2 (aq) + 2H20 (1)

C. 2503 (g) - 2502 (g) + 02 (g)

D. K2CO3 (s) - K20 (s) + CO2 (g)

Question

Chemistry

Zavala

6 April, 17:05

Which one of the following is a double-displacement reaction?

A. Zn (s) + 2HCl (aq) - H2 (g) + ZnCl2 (s)

B. Ba (OH) 2 (aq) + 2HClO4 (aq) - Ba (ClO4) 2 (aq) + 2H20 (1)

C. 2503 (g) - 2502 (g) + 02 (g)

D. K2CO3 (s) - K20 (s) + CO2 (g)

+4

Answers (1)

Know the Answer?

Casey Nichols · Answer 1

The answer to your question is the letter B.

Explanation:

A double displacement reaction is a reaction in which the cation of a reactant displaces the cation of the other reactant and vice versa.

Examples of double-displacement reactions are Redox reactions or neutralization reactions.

Letter B is an example of a double displacement reaction because Barium displaces Hydrogen and vice versa. Also, this is a neutralization reaction because Ba (OH) ₂ is a base and HClO₄ is an acid.

Which one of the following is a double-displacement reaction?A. Zn (s) + 2HCl (aq) - H2 (g) + ZnCl2 (s)B. Ba (OH) 2 (aq) + 2HClO4 (aq) - Ba (ClO4) 2 (aq) + 2H20 (1)C. 2503 (g) - 2502 (g) + 02 (g)D. K2CO3 (s) - K20 (s) + CO2 (g)

Which one of the following is a double-displacement reaction?

A. Zn (s) + 2HCl (aq) - H2 (g) + ZnCl2 (s)

B. Ba (OH) 2 (aq) + 2HClO4 (aq) - Ba (ClO4) 2 (aq) + 2H20 (1)

C. 2503 (g) - 2502 (g) + 02 (g)

D. K2CO3 (s) - K20 (s) + CO2 (g)