Which of the following is not a physical property?

a) water boiling at 100°c

b) a mineral causing a white streak on another mineral

c) sodium exploding when mixed with water

d) a piece of styrofoam floating on water because it is less dense

Asample contains 16.75 g of the radioisotope u-236 and 50.25 g of its daughter isotope, th-232. how long did it take for decay to take place if one half-life of u-236 is 23 million years? 46 million years 69 million years 92 million years 115 million years

Which element would mostly likely have an electron affinity measuring closest to zero

How many grams of phosphorus are contained in 5.09 moles of phosphorus?