Carbon on the other hand reacts with oxygen to produce an acidic oxide that turns universal indicator orange. Most non-metals react with oxygen to produce acidic oxides. Sodium metal reacts violently with water. Wear safety goggles. Use insulated gloves to handle dry ice to protect hands from the cold.
Overhead projector is used to project color of solutions.
Please take care to keep the projector dry and clean. If you want to use a Bunsen burner in room 122, ask Alice to unlock cupboard and open gas valve. Add some water and stir. It will not completely dissolve. Set watch glass on overhead projector.