The table shows the boiling points of the elements found in a sample of liquid air. Which elements would be gaseous at −190 °C?

argon, helium and nitrogen
argon, nitrogen and oxygen
helium, neon and nitrogen
helium, neon and oxygen

📝 Detailed explanation

Substances are gases when the temperature is above their boiling points. Helium (−269 °C), neon (−246 °C), and nitrogen (−196 °C) are gaseous at −190 °C.

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