In the atmosphere, under the effect of ultraviolet rays, oxygen molecules combine to form ozone molecules, and ozone molecules also photodissociate to form oxygen molecules. Which of the following would be observed if this reaction is in dynamic equilibrium?

3 O2 <--> 2 O3

a
The rates of the forward and reverse reactions will remain the same.

b
The concentration of ozone (O3) will decrease.

c
The concentration of oxygen (O2) will increase.

d
The rates of the forward and reverse reactions will increase.

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure