Answer:
1. H2 + Cl2 → 2HCl Synthesis
2. Ca + Br2 → CaBr2 Synthesis
3. BaO + H2O →Ba(OH) Synthesis
4. 2HgO (s) --> 2Hg (s) + O2 (g) Decomposition
5. 2 Cu + CI2 --> 2CuCI Synthesis
Explanation:
A synthesis reaction is a reaction in which two or more reactants combine to form a more complex substance. This reaction is often represented as: A + B --> AB.
A decomposition reaction is a reaction in which a more complex substance is broken down into two or more smaller substances. This reaction is often represented as: AB --> A + B.
I hope this help with the rest!
