What is the partial pressure of CO₂ at 468.2 K in a 25.0 L fuel combustion vessel if it contains 76.8 grams CO₂, 82.1 g H₂O, and 7.30 mol vaporized, yet uncombusted fuel?

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6.4 cm (max) - 25 cm (min)

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.