According to scientist Anne McNeil, what is the broad definition of chemistry?

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

Why is the melting of ice a physical change ?