Q21.79P - Chemistry: Molecular Nature Of Matter And Change

Question

Why do steel bridge-supports rust at the waterline but not above or below it?

Step-by-Step Solution

Answer

There isn't enough oxygen below the waterline, and there isn't enough water above the waterline for rust to form.

Step 1: Understand the question

The question asks: Why do steel bridge-supports rust at the waterline but not above or below it?

Step 2: Apply Chemistry knowledge

Using fundamental Chemistry concepts to analyze the problem.

Step 3: Formulate the answer

There isn't enough oxygen below the waterline, and there isn't enough water above the waterline for rust to form.

Step 4: Conclude

The answer is: There isn't enough oxygen below the waterline, and there isn't enough water above the waterline for rust to form.