Question

From the list below, identify which situation(s) contain chemical changes
From the list below, identify which situation(s) contain chemical changes.

I) A pot of water is being heated on a stove. Bubbles form and condensation appears on the lid of the pot.

II) A translucent, blue copper (II) sulfate solution is mixed with another solution and changes to a translucent lighter blue color.

III) Ammonium nitrate solid dissolves in water and feels very cold.

IV) Red and blue paint are mixed together and the color purple appears.

A)
I and II


B)
III only


C)
II, III and IV


D)
I, II and III

Answer 1

Answer:

option (C)

Explanation:

chemical changes are those in which the reacting products cannot be gained back

in case of option C the case is valid

Answer 2

Answer:

2,3and4 are chemical reactions.

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