Question

রাসায়নিক পরিবর্তন ঘটলে কি কি দেখে / অনুভব করে তা বোঝা যেতে পারে ? Class six question .

Answer 1

Answer:

You just need to know what to look for. A chemical change has probably occurred if bubbles are released, there is a change of color, or an odor is produced. Other clues include the release of heat, light, or loud sounds. Examples of chemical changes that produce these clues are shown in the Figure below.