A scientist wants to study the diversity of soil bacteria found during different months of the year A. what is her independent variable B. what will be her dependent variable

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

If two objects at different te,peraure are in contact with each other what happens to their temperature