Science, asked by ummeayeman, 3 months ago

Explain which of the following changes is exothermic and which is endothermic
(1) decomposition of ferrous Suffet Sulphade
(2) dilution of sulphuric acid
(3) desolving sodium hydroxide in water
(4) desolving ammonium sodium

Answers

Answered by phenom001

8

Answer:

3 is the correct answer.

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