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1. Why are decomposition reactions called the opposite of combination reactions?
Write equations for these reactions.
Write equations for these reactions.
In a decomposition reaction, a single compound breaks down to produce two or more simpler substances.
Example:
Example:
While, in a combination reaction, two or more substances combine to form a new substance.
Example:
Example:
2. What do you mean by a precipitation reaction? Explain by giving examples.
A precipitation reaction is defined as the formation of an called precipitate that separates from the solution.
When an iron (III) chloride solution and ammonium hydroxide solution are combined, a precipitate of iron (III) hydroxide is produced.
FeCl_3(aq) + 3NH_4OH(aq) → Fe(OH)_3(s) + 3NH_4Cl(aq)
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