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Why should students with Usher syndrome receive intensive and extensive instruction in Braille and orientation and mobility even when they are still able to see?
3-Heptanone
An organic compound that is a ketone with seven carbon atoms, where the carbonyl group is located at the third carbon.
Propanal
An aldehyde with the chemical formula C3H6O, characterized by a three-carbon chain with a terminal carbonyl group.
Chromic Acid
An oxidizing agent made by dissolving chromium trioxide in water or by dissolving dichromate salts in sulfuric acid, used primarily in cleaning laboratory glassware and in certain oxidation reactions.
3° Alcohol
A tertiary alcohol where the hydroxyl (OH) group is attached to a carbon atom that is also attached to three other carbon atoms.
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