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the unseen text three was quite hard for me so i think i stuffed up a bit in the questions

Oky so i have a assesment and i need to use good indicators to be able to differentiate between 5 samples The samples will include hcl,acetic acid,,naoh,nacl,nh4cl. Im using litmus,methyl violet,alizarin yellow R Will they determine the difference between the weak acid (acetic acid) and...