A catalyst Group of answer choices increases DH for the process. increases the rate at which equilibrium

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)