Provide the setup and the answer of the question provided below. Lithium has two isotopes. 6Li has an abundance of 7.42% and has a mass of 6.01 amu. If another isotpe, 7Li, has an abundance of 92.58% and a mass of 7.02 amu, please calculate the atomic mass of lithium. (Keep two digits after decimal in your answer)

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

The water cycle increase the water content in the earth atmosphere