Is NaI a gen ionic transition or covalent

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

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.

Ill give u brainliest pls how is mass of carbon conserved during cellular respiration