H4x - pka1 =1.5
h3x 2- pka2 =3.6
h2x 3- pka3 =7.8
hx 4- pka4 =10.9
x 5- pka5 =11.5
8.67
5.45
13.45

Drug abuse will not lead to physical and psychological dependence. true or false ?

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.