For the balanced equation shown below, if the reaction of 0.112 grams of H2 produces 0.745 grams of H20, what is the percent yield?
Fe, O, + 4 H -
3 Fe + 4H2O

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa