Give the iupac name of the carboxylic acid and the alcohol used to prepare methyl butanoate. spell out the full iupac names of the carboxylic acid and alcohol separated by a comma.

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

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Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?