Hydrofluoric acid solutions cannot be stored in glass containers because HF reacts readily with silica dioxide in glass to produce hexafluorosilicic acid (H2SiF6). SiO2(s) + 6 HF(aq) H2SiF6(aq) + 2 H2O(l)
24.0 g SiO2 and 60.0 g of HF react to yield 45.8 g H2SiF6.
(a) What is the limiting reactant?
SiO2
HF
(b) What is the mass of the excess reactant?
(c) What is the theoretical yield of H2SiF6?
(d) What is the percent yield?

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

sry but any answer choices

"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."