If energy absorbed is less than energy emitted does temperature increase or decrease?

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.

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

In which reaction is precipitation occurring?