A Six-Year-Old Believes That Dark Clouds in the Sky Are

question 18

Multiple Choice

A six-year-old believes that dark clouds in the sky are angry. That child is in the __________ stage.

• A)sensorimotor
• B)preoperational
• C)concrete operational
• D)formal operational

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Definitions:

IR Spectroscopy

A technique used for identifying and studying chemicals by analyzing the infrared light absorbed, emitted, or scattered by the sample.

O-H Stretch

A vibrational mode in infrared spectroscopy indicating the presence of an O-H bond, useful in identifying alcohols, phenols, and acids.

IR Spectrum

A graph displaying the infrared light absorption of molecules, used to determine molecular structures.

Carboxylic Acid

Organic acids containing a carboxyl group (COOH), which makes them capable of donating a proton (acidic) and forming covalent bonds with metals.