Ideal gasses (ideal gas law)
40. Because sodium chloride is NaCl
B: quantity of solute with a specific volome of solvent.
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These gases all have similar properties under standard conditions: they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).