Answer:
i do not know the answer but pls give a heart and five starts so i can ask questions pls
Explanation:
I think that type of rock is call Igneous rock because the igneous rock is molten rock from volcanoes.
ANSWER

EXPLANATION
Given that;
The two reactants are KBr and CaO
Double replacement reaction is a type of chemical reaction that occur when two reactants exchange cations and anions to yield new products.

Therefore, the resulting products of the given data are K2O + CaBr2
The correct answer is option B