You have a 9.1 ppm sodium ion (Na', 22.990 g/mol) aqueous solution. Express this in uM (umol/L).

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

Define the kinetic molecular theory

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by