Answer:
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Answer:
Iron (II) oxide
Explanation:
Chemical formula of the given compound = FeO
The given compound is an oxide.
In oxides, oxidation state of 'O' is -2.
Let oxidation state of Fe be x. It is a neutral compound.
Therefore, x - 2 = 0
x = +2
So, the oxidation state of Fe in FeO = +2
In the nomenclature of inorganic compounds, cation is named first. After that oxidation state of cation is written. Name of anion is written after that.
Cation = Iron
Anion = oxide
So the name of the given compound would be Iron (II) oxide.
Answer:
A
Explanation:
Quaternary structure of proteins is composed of two or more polypeptide chains. Insulin has two; one alpha and one beta chain. The two chains are joined together by disulfide bonds at two points (at cysteines). Other examples of quaternary proteins structures are DNA polymerase and hemoglobin.
Answer:
its C. Substances that are used up in a reaction