Scelta multipla
Determine the structural formula for the following compound given as a molecular model.
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4. Molecular Compounds
Molecular Models
Scelta multipla
Which of the following molecular models represents the ammonia molecule, NH3?
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Identify the chemical formula of ammonia, which is NH3, indicating one nitrogen atom and three hydrogen atoms.
Understand that in molecular models, different colors are often used to represent different atoms. Typically, nitrogen is represented by a blue sphere, and hydrogen is represented by white spheres.
Examine each molecular model provided in the images to determine which one has a central blue sphere connected to three white spheres, representing the nitrogen and hydrogen atoms respectively.
The first image shows a central blue sphere connected to three white spheres, which matches the structure of NH3.
Verify that the other images do not match the NH3 structure: the second image has black spheres, the third image has four connections, and the fourth image includes a red sphere, which is not part of NH3.
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