What is the chemical formula for ammonia?

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Multiple Choice

What is the chemical formula for ammonia?

Explanation:
Ammonia is made up of one nitrogen atom bonded to three hydrogen atoms. Nitrogen tends to form three covalent bonds to satisfy its tendency to complete an octet, and it has a lone pair of electrons. Each N–H bond shares electrons so that nitrogen achieves eight electrons around it, while hydrogen atoms each have two, giving a stable molecule with one nitrogen and three hydrogens. That arrangement is reflected in the formula NH3. Other formulas would correspond to different species (for example, fewer hydrogens would not complete nitrogen’s bonding pattern, or two nitrogens would indicate a different compound). So NH3 uniquely represents one nitrogen atom bonded to three hydrogens, i.e., ammonia.

Ammonia is made up of one nitrogen atom bonded to three hydrogen atoms. Nitrogen tends to form three covalent bonds to satisfy its tendency to complete an octet, and it has a lone pair of electrons. Each N–H bond shares electrons so that nitrogen achieves eight electrons around it, while hydrogen atoms each have two, giving a stable molecule with one nitrogen and three hydrogens. That arrangement is reflected in the formula NH3. Other formulas would correspond to different species (for example, fewer hydrogens would not complete nitrogen’s bonding pattern, or two nitrogens would indicate a different compound). So NH3 uniquely represents one nitrogen atom bonded to three hydrogens, i.e., ammonia.

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