Which is an advantage of using chemical indicators? a. they are inexpensive to use. b. they have very limited use. c. they require the use of electricity. d. they change color at specific temperatures.,

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.

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule