Compare what happens with the red dye in the water bin with what happens to a hot air balloon surrounded by cool air

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light