Sodium hydroxide (NaOH) is a caustic chemical used in drain cleaners. It burns skin. Its symbol is (two test tubes pouring liquid onto a hand and a piece of metal).

Memorizing the answers is step one. Step two is understanding the science so you can answer variations of these questions in an exam.

Heavy-duty cleaning products typically use strong bases to dissolve baked-on grease Scribd, Wayground. 2. Working Safely with Chemicals

Wear safety spectacles to prevent splashes in the eyes.

When a metal reacts with an acid, they produce a and hydrogen gas .

Solutions with a heavily concentrated acidic pH (around 1 or 2) will trigger a deep red hue Scribd, Wayground.

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