As scientists search the universe for signs of life on other planets they are likely to focus on the presence of molecules containing which of the following elements?
a. carbon
b. calcium
c. iron
d. magnesium

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

What is an example of a physical property?

What layer of the atmosphere is directly above the troposphere?