Hardest question that nobody can answer about diffusion​

How does litmus paper indicate an acid?

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

In the reaction between a crushed antacid tablet and vinegar what gas is emitted