If step 2 in the procedure is reversed (i.e. the potassium iodide is added to the lead nitrate), what do you predict will happen: The reaction would be the same. You would be adding exactly the same amount of chemicals but switching around the order in which what chemical is left waiting in the test tube ready to react with the chemical about to be mixed with it...
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In step 2 in the procedure, the reactants were potassium iodide and lead nitrate. What do you predict will be the products of this reaction: I predicted they would clash and produce either a heat or bubbles/froff.
4. What do you think was deposited on the Magnesium ribbon when you added it to the copper sulfate solution: Pressure and bubbles because the liquid was slowly dissolving it...