Question

For each statement, answer with YES if evidence of a chemical reaction is present. Answer NO if there is no evidence of a chemical reaction.

Drain cleaner is mixed with water and the solution becomes warm?
1) YES
2) NO

Answer 1

YES, the warming of the solution when drain cleaner is mixed with water provides evidence of a chemical reaction, most likely an exothermic one involving substances like sodium hydroxide and aluminum reacting with water.

Step-by-step explanation:

When drain cleaner is mixed with water and the solution becomes warm, this is an indication of a chemical reaction. The generation of heat is a form of evidence of a chemical reaction, which is a result of an exothermic process where chemical bonds are being broken and new bonds are forming. In the case of drain cleaners which often contain sodium hydroxide (NaOH) and other substances such as aluminum, this heat is produced when these chemicals react with water or other substances to clear clogs, often releasing gases or forming new compounds. For example, when Drano, a solid drain cleaner containing sodium hydroxide and powdered aluminum, is used, it reacts with water to produce hydrogen gas, along with other compounds, facilitating the unclogging process.

Based on this evidence, the answer to the question whether evidence of a chemical reaction is present when drain cleaner is mixed with water and the solution becomes warm, would be:

YES