determine whether each statement is an example of a physical change or a chemical change. wood is burned…

determine whether each statement is an example of a physical change or a chemical change. wood is burned. physical chemical dry ice (solid carbon dioxide) vaporizes to form carbon dioxide gas. physical chemical done

determine whether each statement is an example of a physical change or a chemical change. wood is burned. physical chemical dry ice (solid carbon dioxide) vaporizes to form carbon dioxide gas. physical chemical done

Answer

Brief Explanations:

  1. Burning wood involves a chemical reaction where wood reacts with oxygen to form new substances like carbon - dioxide, water vapor, and ash. So it is a chemical change.
  2. Vaporization of dry ice (solid carbon - dioxide changing to carbon - dioxide gas) is a phase change. There is no new substance formed; only the state of carbon - dioxide changes from solid to gas. So it is a physical change.

Answer:

  1. chemical
  2. physical