the NH3 solutions is used, in three separate instances, to separate two ions. in each of the cases, one ion forms a precipitate and the other ion remains in solution as a complex. Describe each of these instances, using reaction equations.

astronomers such as edwin hubble.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

1. they vary with a higher number because boiling is way hotter than melting

i would say b

explanation:

but i think i would need more information than that