Which planet do scientists believe prevented the asteroids in the asteroids belt from forming a planet?

a. earth
b. jupiter
c. mars
d. neptune

Which terms are used to identify pure substances

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

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