What is the difference between a base and a nucleophile?

Answer 1

Nucleophiles are technically defined to be lewis bases, but organic chemists tend to differentiate between them via their behavior.

A Lewis base is an electron donor, and a Brønsted-Lowry base is a proton acceptor. A Lewis base that acquires a proton as a result of donating electrons is thus also a Brønsted-lowry base. When that occurs, it is said to be basic behavior.

A nucleophile is also an electron donor, but strictly speaking, if it donates electrons to make a bond with a non-proton, then it is said to be nucleophilic behavior.

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Answer 2

A base is a substance that can accept a proton (H+) from another substance. A nucleophile is a substance that donates a pair of electrons to form a chemical bond with an electron-deficient species (an electrophile). While both bases and nucleophiles can participate in chemical reactions by accepting or donating electrons, the key difference lies in their mode of action: bases accept protons, while nucleophiles donate pairs of electrons.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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