Step 2: measure the Reaction rate at = 20 c (room temperature) Temperature of the water: c Reaction time: seconds

please help this is for e2020, i really need help now.

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.

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

Rays from the sun are not considered matter true or false