ATAR Notes: Forum
VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: dankfrank420 on August 03, 2014, 12:18:49 am
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On Tuesday, I have this assessed practical where I am to "devise an experiment to accurately identify substances using precipitation reactions and acid base indicators." I know it's only Unit 2, but I want to get a strong preparation for Unit 3/4 chem (from what I've heard from my teacher it relies heavily on knowledge gained from Units 1/2). I think most of the substances will be metal-(insert here) solutions.
Anyway, how would you go about it? I've brainstormed a few ideas, but beyond that I'm really stuck:
- Use the lime water method to test CO2 production, telling me if the substance is a metal carbonate or a metal hydrogen carbonate
- Use the match to test for a POP when I release gas from a test tube with substance and water, telling me that the substance releases hydrogen gas and therefore it's a metal.