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Battery acid is Sulfuric acid and Drano is 54.2 %Sodium hydroxide

Sulfuric acid is a strong acid which can damage skin and your eyes.

Drano is 54.2 % Sodium hydroxide which is lye. Lye is used to make lye soap. Lye reacts with oils and fats to make soap. You have oils on your skin.

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Q: Why are substances like Drano and Battery acid dangerous?
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