A wooden artifact from an ancient culture has a 14C activity of 38.0 counts per minute. A new piece of wood (age zero) has a 14C activity of 58.2 counts per minute. The half-life of 14C is 5715 years. How old is the artifact?

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