Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

are these equations physical or chemical change?

CuSO4.5H20+ heat

Na2CO3+HCI

Na2SO4 + HCI

NaCI+Na2CO3

CaCL2+Na2C03

I2+ heat

3 Answers

Relevance
  • 4 years ago
    Favorite Answer

    CuSO4.5H2O+ heat physical change

    Na2CO3+HCI chemical change

    Na2SO4 + HCI no change

    NaCl+Na2CO3 no change

    CaCl2+Na2CO3 chemical change

    I2+ heat physical change

  • ?
    Lv 4
    4 years ago

    chemical is chemicall reaction. Physical is no chemical reaction

  • 4 years ago

    I don't think they are equations. No equal sign.

Still have questions? Get your answers by asking now.