Solve : Calculate the atomic mass of copper if copper has two isotopes . 69.1% has a mass of 62.93 amu and the rest has a mass of 64.93 amu.

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

What happens when the temperature of a solution increases?

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons