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In the determination of iron in vitamins,Fe2+ is titrated with permanganate,MnO4-,in acidic solution.The products of the reaction are Fe3+ and Mn2+.In the balanced equation,the number of electrons transferred is
Development of Smiling
The process by which infants first begin to show expressions of joy and satisfaction through smiling, typically emerging around 6 to 8 weeks of age.
Critical Period
A specific time in development during which the presence or absence of certain experiences has a long-lasting influence on the individual.
Human Beings
Members of the species Homo sapiens, characterized by their capacity for complex language, abstract thinking, and social structures.
Attachment
A deep and enduring emotional bond that connects one person to another across time and space.
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