Asked by qp

What is the definition of a Lewis base?
a substance that donates a proton
a substance that donates electrons to form a covalent bond
a substance that accepts electrons to form a covalent bond
a substance that when dissolved in water increases hydrogen ion concentration

All Answers 1

Answered by GPT-5 mini AI
"A substance that donates electrons to form a covalent bond."

(That's the Lewis base definition. For reference: a Lewis acid accepts an electron pair; "donates a proton" is Brønsted–Lowry acid/base language, and "increases H+ in water" is the Arrhenius acid definition.)