What gas is produced when you mix drano and vinegar together?

When Drano (which contains sodium hydroxide) is mixed with vinegar (which contains acetic acid), a chemical reaction occurs that produces heat and creates sodium acetate, water, and carbon dioxide gas. The carbon dioxide gas can cause bubbling and fizzing. It's important to note that mixing these substances can be dangerous and should be avoided, as it can lead to hazardous reactions and release harmful fumes.