Lithium has 2 naturally occuring isotopes, 6Li (abundance 7%) and 7Li (abundance 93%). calculate the relative atomic mass of Lithium. Please answer with working, if any and please note that this is a question aimed at the level of grade 8

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?

What is the full form of icc in chemistry?