After decaying for 48 hours,1/16 of the original mass of a radioisotope sample remains unchanged. what is the half-life of this radioisotope?

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml