If an atom has an atomic number of 12 and a mass number of 16 how many protons does it have

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Compare and contrast solutions and suspensions

Displacement is the slope of a velocity vs. time graph a. true b. false