The half-life of sodium-25 is 1.0 minute. Starting with 1 kg of this isotope, how

much will remain after half an hour?

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?

What characteristics does a earthquake have