How much heat in kilojoules is required to heat 56 l of water from 89 ∘f to 212 ∘f?

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

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.