Which organ belongs in the circulatory system

50 pts plz what is the physical state of matter of baking soda.

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use