Give the physiological significance of the ions zn2+ fe2+ cl- nh4+ and po43-

I can help you with some of the ions

Cl- : the purpose of this is to alter neuron responsiveness to stimulation; also main component of stomach acid which is important in digestion; shift in erythrocytes

PO43- : forms Ca3(PO4) with Calcium which is important in hardening of bone and teeth; an important component of phospholipids; also a component of nucleotides; the most common intracellular anion; intracellular buffer

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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