Answer:
The equation is already balanced
The type of reaction is decomposition
Explanation:
Step 1 Balancing equation
First list the elements and how many atoms of that element are on each side to find out what we need to balance
CuCO3 ==> CuO + CO2
3 O 3
1 Cu 1
1 C 1
It appears that each element is balanced on each side already so the equation is already balanced.
Next we identify the type of reaction
These are the 4 main types of reactions and this is how they are typically written
Synthesis : A + B ==> AB
Decomposition : AB ==> A + B
Double Replacement : AB + CD ==> AC + BD
Single Replacement : AB + C ==> AC + B
The given equation, CuCO3 ==> CuO + CO2 appears to follow the decomposition reaction structure, AB ==> A + B as it starts off as a single compound and is decomposed into two or more substances.
