Which of the following is a chemical property a color c freezing point b

Which of the following is a chemical property a color

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49.Which of the following is a chemical property?a.colorc.freezing pointb.hardnessd.ability to react with oxygen____50.In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water, which of the following is a reactant?____51.What must occur for a change to be a chemical reaction?____52.Which of the following is NOT a physical change?____53.All of the following changes to a metal are physical changes EXCEPT ____.a.bendingc.rustingb.meltingd.polishing____54.Which of the following does NOT involve a physical change?____55.Which of the following processes does NOT involve a change in chemical properties?____56.A chemical change occurs when a piece of wood ____.____57.Which of the following is a chemical property of water at 4C?a.its colorb.its statec.its temperatured.its ability to decompose into hydrogen and oxygen____58.What must be done to be certain that a chemical change has taken place?a.Check for the production of bubbles before and after the change.b.Demonstrate that a release of energy occurred after the change.c.Check the composition of the sample before and after the change.d.Demonstrate that energy was absorbed by the reactants after the change.____59.When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
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____60.Which of the following indicates that a chemical change has happened during cooking?____
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  • Spring '15
  • Chemistry, pH, Chemical substance, Chemical compound

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