the half-life of a certain radioisotope is 12 days. how much (mass) of a 60 mg sample will remain after 36 days

Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)

How are isotopes of the same chemical element alike? how are they different?

Geothermal energy for industrial use is available almost anywhere. a.true b.false