Chemistry, 07.07.2019 21:30 Basicwhitegirl1
Ascientist carried out several different procedures, each of which caused a change in matter. select each procedure that is likely a chemical change. {1}salt crystals were crushed into a fine powder. {2}bubbles were produced when iron was placed in acid. {3}two liquids were combined, and a solid appeared. {4}a piece of metal melted when it was heated. {5}a white substance turned blue when water was added.
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Consider the reduction reactions and their equilibrium constants. cu+(aq)+eββ½βββcu(s)pb2+(aq)+2eββ½βββpb(s)fe3+(aq)+3eββ½βββfe(=6.2Γ108=4.0Γ10β5=9.3Γ10β3 cu + ( aq ) + e β β½ β β β cu ( s ) k =6.2Γ 10 8 pb 2 + ( aq ) +2 e β β½ β β β pb ( s ) k =4.0Γ 10 β 5 fe 3 + ( aq ) +3 e β β½ β β β fe ( s ) k =9.3Γ 10 β 3 arrange these ions from strongest to weakest oxidizing agent.
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Ascientist carried out several different procedures, each of which caused a change in matter. select...
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