Fossils that can be used to date rocks are known as index fossils. They have a specific set of traits.

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element

Which statement would indicate the presence of an acid

Assignment directions: pick one of the following chemists and perform a bit of research on him/her. answer the following questions. alice hamilton             rosalind franklin marie curie             gertrude b. elion ada yonath             henry cavendish robert boyle             antoine lavoisier mario j. molina             svante arrhenius