State whether each of the following
is exothermic or endothermic
1) Na and H2O

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?

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

What are fructose and glucose an example of?