Does density of water depend on the amount of water present ?

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

In a copper wire, a temperature increase is the result of which of the following

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.