in a chemical reaction, atoms are destroyed and new ones are created. true false rusting of iron is an…

in a chemical reaction, atoms are destroyed and new ones are created. true false rusting of iron is an example of a chemical change. true false a double replacement reaction involves the exchange of ions between two compounds. true false boiling water is an example of a chemical change. true false

in a chemical reaction, atoms are destroyed and new ones are created. true false rusting of iron is an example of a chemical change. true false a double replacement reaction involves the exchange of ions between two compounds. true false boiling water is an example of a chemical change. true false

Answer

Brief Explanations:

  1. In a chemical reaction, atoms are rearranged, not destroyed or created, according to the law of conservation of mass.
  2. Rusting of iron involves a chemical reaction between iron, oxygen, and water to form iron - oxide, so it is a chemical change.
  3. A double - replacement reaction is defined as the exchange of ions between two compounds.
  4. Boiling water is a physical change as it only changes the state of water from liquid to gas without forming new substances.

Answer:

  1. B. False
  2. A. True
  3. A. True
  4. B. False