Where is the sun classified in the HR diagram

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

Why doesn't heat added to water make the tempature rise above 100c

The identities of substances are the same before and after which type of change