Amixture of carbon dioxide and an unknown gas was allowed to effuse from a container. the carbon dioxide took 1.25 times as long to escape as the unknown gas. which one could be the unknown gas?

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?