10 Questions
What is a molecule?
A group of two or more atoms held together by chemical bonds
Which type of molecule consists of atoms of one chemical element?
Homonuclear molecule
Who contributed to the modern investigation into the nature of molecules and their bonds?
Linus Pauling
In the kinetic theory of gases, the term 'molecule' is often used for which particles?
Any gaseous particle regardless of its composition
What is the study of molecules known as today?
Molecular physics or molecular chemistry
What is a zwitterion in chemistry?
A molecule containing an equal number of positively and negatively charged functional groups
What are betaines in relation to zwitterions?
Zwitterions that cannot isomerize to an all-neutral form
What is the stoichiometry of tautomerism of amino acids?
RCH(NH2)CO2H ⇌ RCN(N+H3)CO−2
How are zwitterions stabilized in aqueous solution?
By hydrogen bonding with solvent water molecules
What is the approximate range for the pKa values of deprotonation of common amino acids?
2.15±0.2
Test your knowledge of molecules and chemical bonds with this quiz! Learn about the definition of a molecule, its composition, and the attractive forces that hold atoms together. Explore the concepts of homonuclear and polyatomic ions.
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