Current Question: An isotope has a half-life of 32
days. If you start with 123 g,
how many will remain after 96
days?
625 g
138.375 g
7.6875 g
15.375 g

Calculate the expected ph values of the buffer systems from the experiments (a, b,c, d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

How have the greenhouse gasses increased from the year 2000 to 2018