Two lobes.
The shape of four sp3 hybrid orbitals is part s and part p-each has two lobes but one lobe is much bigger (which is the lobe used for bonding)
I think C-I
It can also be wrong but that’s my opinion
The Match of element to its name, atomic mass is as below
element symbol atomic mass or atomic number
Antimony Sb 51
sulfur S 32
Silicon Si 14
<u><em>Explanation</em></u>
From periodic table Antimony is a chemical element with symbol Sb and atomic number 51.
Sulfur on the other hand is a chemical element with symbol S and has a atomic mass of 32
silicon is an element with symbol Si and atomic number 14
1) The amount of PbS produced will be 16.27 grams
2: The amount of Fe produced will be 118.72 grams.
<h3>Stoichiometric problems</h3>
1) The equation is balanced. The mole ratio of lead (II) acetate to the PbS is 1:1.
Mole of 22.11 lead acetate = 22.11/ 325.29 = 0.06797 moles
Equivalent mole of PbS = 0.06797 moles
Mass of PbS = 0.06797 x 239.3 = 16.27 grams
2) from the equation, the mole ratio of Al to Fe is 1:1.
Mole of 57.2 g Al = 57.2/26.98 = 2.12 moles
Equivalent mole of Fe = 2.12 moles
Mass of Fe = 2.12 x 56 = 118.72 grams.
More on stoichiometric problems can be found here: brainly.com/question/14465605
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