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Thanks everyone... espically mitochondria for the extent you've been to try answer! I understand what you've all said, and although I'm still not really completely satisfied, I'll deal. Why can't there just be one right answer? ahh... yea... this is chem... Thanks heaps again!

Okay, assuming you are using the same agar as us... The indicator potassium hexacyanoferrate will turn the yellow agar BLUE, indicating OXIDATION of iron, and phenopalein (still can't spell that), will turn the yellow agar PINK, indicating REDUCTION. So, for more active zinc I also think it...

You probably have that point down by now, but i wanted to reply to something in thanks to the people who replied to my question. So, esters are responsible for the scent and taste of different aromas in nature such as in perfumes, flowers, fruits and flavouring agents. For example; -...

Hey all those unfortunate enough to have kept chemistry, So, I'm trying to study for trials and I keep coming across questions about litmus as an indicator. In one it meantions that it turns red to blue from pH 5 - 8. And, in another says it is not used for volumetric anaylsis. In both it...