Help within the next 10 minutes!!! (1 Viewer)

[Alaranth]

If anyone can answer my question really quickly, I will love you forever!

I need to know an everyday use for two NAMED indicators! I can find uses, but no-where will tell me which indicator is used! I need it very soon, so if you can help, PLEASE do!!!

 

[Slidey]

Hello, textbook.

Litmus, phenolphthalein, methyl orange, bromothymol blue...

 

[princesssfi]

phenol red is used to test the acidity of swimming pools.
and.... um. we only had to know one.
how about universal for soil acidity?