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supatsarah

Which statement describes a physical change? Iron combines with oxygen to form rust. Calcium is added to acid and hydrogen gas is produced. Sodium metal reacts explosively with oxygen. Lead is heated and becomes more viscous.

  • one year ago
  • one year ago

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  1. CliffSedge
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    http://openstudy.com/study#/groups/Chemistry Which one does not involve a chemical reaction?

    • one year ago
  2. supatsarah
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    @CliffSedge duude , i need the answer really bad. common , i'll give you the best response if you give me the answerr.

    • one year ago
  3. KingGeorge
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    OpenStudy discourages seeking for answers, and giving answers. Please keep this in mind while you use this site. Thanks.

    • one year ago
  4. CliffSedge
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    I am immune to bribes, sorry.

    • one year ago
  5. supatsarah
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    freakinn aye man . bye

    • one year ago
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