Use the molar bond enthalpy data in the table to estimate the value of Δ∘rxn for the equation C2H4(g)+HBr(g)⟶C2H5Br(g)

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )