Traits are passed from parents to offspring. These traits are determined by

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

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)

Using data from seismic waves, geologists have learned that earth’s interior is made up of several