Interpretation: To research and interpret how adding metals can increase the effectiveness of household drain cleaners.
Concept Introduction: The addition of metal to the base leads to the formation of respective salt and hydrogen gas is released.
Answer to Problem 9LC
Adding metal to these products increases the effectiveness as the liberation of hydrogen gas is useful in cleaning up the clog.
Explanation of Solution
The household drain cleaners contain both sodium hydroxide and some particles of aluminum and zinc metals.
When sodium hydroxide (base) reacts with zinc or aluminum metals, it forms the corresponding salts and hydrogen gas is released.
These bubbles of hydrogen gas help break up the clog in drains.
Therefore, adding metal to these products increases the effectiveness as the liberation of hydrogen gas is useful in cleaning up the clog.
Chapter 19 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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