Nesesito ayuda no Le Entendi

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.