Chemistry, 03.07.2019 18:00 jennainglish
Hi i need with this question if anyone can me, you can find the question in the attached file by the way i didn't know what kind of science this
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Chemistry, 21.06.2019 15:50
In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.
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Chemistry, 23.06.2019 00:30
You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices
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Chemistry, 23.06.2019 15:30
The amount of iron in ore can be quantitatively determined by titrating a solution of the unknown with a standard solution of dichromate, cr2o72β. the net ionic equation is 6fe2+(aq)+cr2o72β(aq)+14h+(aq)β6fe3+(aq)+2cr3+(aq)+7h2o(aq) part a the titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.230 m solution of dichromate to reach the equivalence point. what is the molarity of the iron(ii) solution?
Answers: 1
Hi i need with this question if anyone can me, you can find the question in the attached file by t...
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