Which characteristics are used to classify stars on the Hertzsprung-Russell diagram? Check all that apply.

size
density
composition
temperature
absolute brightness

In this synthesis reaction what products will form

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram