The mass spectrograph of copper shows two bands. One at 62.9296 that has a width of 0.69200 and one that is 0.30800 at 64.9278. Interpret this data and find the mass of naturally occurring copper.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car