When water is added to the cool, powdery anhydride, so much heat is released that the water fizzes audibly. In addition, the test tube becomes hot to touch, and the powder turns bright blue again as the hydrate reforms. She was wise to return, since all the water had not been vaporized earlier from the hydrate. Go to Top Go to Teachers Index Check List List the following techniques on the chalkboard. Point out to students that they will be graded on each item during the laboratory period.
All items are of equal importance.
To facilitate checking these techniques, list the skills along the top of a grid.