Anonymous
Anonymous asked in Science & MathematicsChemistry · 1 decade ago

What is a discreet molecule?

One of my exam questions in chem was, "Which of the following does not exist as discreet molecules: HCl, LiCl, or BrCl?" I picked LiCl and I was right, but it was just luck. What is a discreet molecule?

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  • 1 decade ago
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    A discreet molecule is a single molecule. Since both BrCl and HCl exist a gases then they can exist as discreet molecules.

    But LiCl is a salt and can only exist in a salt matrix which consists of MANY more LiCl units.

    It cannot exist as a gas, but can be dissolved, but when dissolved it is no longer LiCl it is Li+ and Cl- ions, not longer a molecule at all.

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