Given the two reactions h2s⇌hs−+h+, k1 = 9.58×10−8, and hs−⇌s2−+h+, k2 = 1.58×10−19, what is the equilibrium constant kfinal for the following reaction? s2−+2h+⇌h2s enter your answer numerically.

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 statement best describes what happens when molecular compounds melt

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity