Question

An example of a chemical change is:

A

formation of clouds

B

glowing of an electric light

C

dropping sodium into water

D

dissolving of salt in water

Easy

Solution

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Correct option is C)

Chemical changes involve chemical reactions and the creation of new products. Typically, a chemical change is irreversible.
Examples are:
  1. Dropping sodium into water
  2. combustion (burning) of wood
  3. metabolism of food in the body
  4. cooking an egg
  5. digesting sugar with the amylase in saliva
  6. baking a cake
  7. electroplating a metal
  8. explosion of fireworks
  9. rotting bananas
  10. grilling a hamburger
  11. milk going sour

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