What was the ratio in the formula for iron (ii) oxide?

what was the ratio in the formula for iron (iii) oxide?

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.

Calculate the number of moles of ethane in 100 grams

What is one real world example of a colligative property?