Unformatted text preview: Using a small paintbrush test the ‘disappearing ink’ on a white page. Safety Wear eye protection. Care with teat pipettes that contain sodium hydroxide. Questions The color change occurs because sodium hydroxide reacts with a gas in the air. 1. Which gas in the air causes this color change? 2. Write a word equation for the reaction. 3. Write a formula equation for the reaction. Royal Society of Chemistry Student Sheets – Classic Chemistry Experiments Home...
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- Winter '08
- Chemistry, Sodium hydroxide, Royal Society of Chemistry, blue ink spot, small paintbrush test