Question: When r = 0 decay stops and seismic motion continues? Explain it. (r is the decay factor) ​

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?