WILL GIVE BRAINLIEST, NO LINKS Given the equation: Fe+3 —> FeS+energy, which of the following statements about this reaction are true? ( 1 ) The potential energy of the reactants is the same as the potential energy of the product. ( 2 ) The potential energy of the reactantsbie lower than the potential energy of the product. (3) It is endothermic (4) It is exothermic

Which statement best describes the function of enzymes?

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

Which statement accurately represents the arrangement of electrons in bohr’s atomic model?