How many moles of iodine vapor react with 1.00 mol of hydrogen gas?

1 mole

Explanation:

First thing's first we have to write out the chemical equation for the reaction.

Hydrogen + Iodine --> Hydrogen Iodide

H2(g) + I2(s) → 2HI(g)

Upon observing the stoichiometry of the reaction, we can tell that;

1 mole of H2 reacts with 1 mol of I2

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."