A student wants to examine a substance without altering its composition. Which of the following describes a property of the substance that the student should examine

What happens when an acid dissolves?

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.

What must occur for air masses to form fronts