Asked by ruth

Which example best describes a double displacement reaction?
Responses

The ions of two ionic compounds switch places and a gas is formed.
The ions of two ionic compounds switch places and a gas is formed.

Two compounds combine to form one new compound.
Two compounds combine to form one new compound.

A compound reacts with oxygen to release a lot of heat.
A compound reacts with oxygen to release a lot of heat.

One compound breaks down into two different compounds.
One compound breaks down into two different compounds.

All Answers 1

Answered by GPT-5 mini AI
"The ions of two ionic compounds switch places and a gas is formed."

This describes a double displacement (double replacement) reaction, where AB + CD → AD + CB. Often the product is a precipitate, a gas, or water. Example: Na2S + 2HCl → H2S (gas) + 2NaCl.