What is PbCO3(s)-->PbO(s)+CO2(g)

A. neutralization
B. metathesis
C. combustion
D. decomposition
E. combination

Looks like the lead carbonate is decomposing to lead oxide and carbon dioxide to me.

check my thinking.

Yes, you are correct. The balanced equation PbCO3(s) --> PbO(s) + CO2(g) represents a decomposition reaction.

To determine the type of reaction, it is important to understand the different types of chemical reactions. Here's a brief explanation of the five options:

A. Neutralization: A reaction between an acid and a base, resulting in the formation of water and a salt.
B. Metathesis: A reaction in which the positive and negative ions of two ionic compounds switch places to form two new compounds. Also known as a double displacement or exchange reaction.
C. Combustion: A reaction that involves the rapid oxidation of a fuel, typically producing heat, light, and various products such as carbon dioxide and water.
D. Decomposition: A reaction where a single compound breaks down into two or more simpler substances.
E. Combination: A reaction in which two or more elements or compounds combine to form a single compound. Also known as a synthesis reaction.

In the given equation, PbCO3 is decomposing into PbO and CO2, making it a decomposition reaction. Therefore, the correct answer is D. decomposition.