Chemical change — task. Science CBSE Homework Assignments, Class 7.

Write word equations for two chemical reactions with the help of materials given in the box.

Air, copper sulphate, iron, vinegar, iron oxide, carbon dioxide, iron sulphate, copper, lime water, water.

(i). + Air + Water → .

(ii). + Iron → + Copper.

Did you find an error?

4. Chemical change