14. A student tried to make some magnesium sulphate. Excess magnesium was added to dilute sulphuric acid. During this reaction fizzing was observed due to the production of a gas. Identify the gas produced A Hydrogen B Magnesium oxide C Sulphur dioxide D Oxygen​

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.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !