Answer:
Phosphorus, Sulfur, and Selenium are the only <u>poly</u>atomic elements.
Hydrogen, Nitrogen, Oxygen, Fluorine, Chlorine, Bromine, and Iodide are all <u>di</u>atomic elements.
Proteins is a amino acids are monomers that join together in complex macromolecules.
Answer is B.
Hope it helped you.
-Charlie
The oxidation state of single oxygen atom is -2
since it is more electronegative and like to gain electrons.
The sum of the oxidation states of each atom = charge of
compound
Let’s say the oxidation state of Sulfur is x.
Hence,
<span> x +4 * (-2) = -2</span>
<span> x – 8 =
-2</span>
<span> x = +6</span>
<span>The
oxidation state of individual Sulfur atom is +6</span>
%yield = 54.6%
<h3>Further explanation</h3>
Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated
(theoretical)
General formula:
Percent yield = (Actual yield / theoretical yield )x 100%
<h3 />
Reaction
2ZnS+3O₂ ⇒ 2ZnO+2SO₂
MW ZnS = 97.474 g/mol
MW ZnO = 81.38 g/mol
- mol ZnO (from mol ZnS as limiting reactant, O₂ excess)
Theoretical production = 125.388