3. this forms when a double replacement reaction bubbles part of its product into the air\na gas\na…

3. this forms when a double replacement reaction bubbles part of its product into the air\na gas\na precipitate\n a liquid\nnothing is formed this way
Answer
Brief Explanations:
In a double - replacement reaction, when a product is bubbled into the air, it is a gas. A precipitate is a solid that forms in a solution, a liquid doesn't bubble into the air in this context, and clearly something is formed.
Answer:
A. a gas