Answer is: Yes it is balanced. It has the same number of Ca and O on both the reactant side and the product side.
According to principle of mass conservation, number of atoms must be equal on both side of chemical reaction.
There is one calcium atom atom and one oxygen atom on both side of reaction, so chemical reaction is balanced.
What are the options? I can try to give you an answer if options are provided.
Answer:
Plutonium is the second transuranium element of the actinide series.
1 wavelength, 2 crest, 3 trough, 4 wave height <3