Classify the reactions
(combustion, synthesis, decomposition, replacement, or double replacement)
CaO9(s)+H20(l)�¨ Ca(OH2(ag)
Ca(ClO3)2(s)�¨CaCl2(s)+O2(g)
Your first equation needs work. There is no CaO9.
What don't you understand about these terms. Naming the kind of reaction is about understanding the terms.
To classify the reactions, we need to understand the different types of chemical reactions:
1. Combustion: This type of reaction involves the reaction of a substance with oxygen, usually resulting in the release of heat and light. Combustion reactions often involve hydrocarbons or organic compounds as reactants.
2. Synthesis: Also known as a combination reaction, this type of reaction involves the combination of two or more substances to form a single, more complex substance.
3. Decomposition: In a decomposition reaction, a single compound breaks down into two or more simpler substances or elements.
4. Replacement: Also known as a single replacement reaction, this type of reaction involves the replacement of one element in a compound with a different element.
5. Double Replacement: In a double replacement reaction, the anions or cations in two different compounds switch places to form new compounds.
Now, let's analyze the given reactions:
1. CaO(s) + H₂O(l) → Ca(OH)₂(aq)
This reaction is a synthesis reaction because CaO and H₂O combine to form a more complex compound, Ca(OH)₂.
2. Ca(ClO₃)₂(s) → CaCl₂(s) + O₂(g)
This reaction is a decomposition reaction because Ca(ClO₃)₂ breaks down into simpler substances, CaCl₂ and O₂.
Therefore, the classification of the reactions is as follows:
1. CaO(s) + H₂O(l) → Ca(OH)₂(aq) : Synthesis reaction
2. Ca(ClO₃)₂(s) → CaCl₂(s) + O₂(g) : Decomposition reaction