Ca + O2 gives 2CaO
Equation: CaO2 ----> CaO + [O]
The correct balanced equation for the reaction between CaO and CO2 to form CaCO3 is CaO + CO2 -> CaCO3. This represents the conservation of mass with one Ca, one C, and three O atoms on both sides of the equation.
CaO + H 2 SO 4 = CaSO 4 + H 2 O
Ca+O=CaO
CaO
The chemical equation for the reaction between barium oxide, calcium oxide, and strontium oxide with aluminum is: 3BaO + 2Al → Al₂O₃ + 3Ba CaO + 2Al → Al₂O₃ + Ca SrO + 2Al → Al₂O₃ + Sr
This equation is 2 CaCO3 + 2 SO2 + O2 -> 2 CaSO4 + 2 CO2.
The equation is already balanced:CaCO3(s) --> CaO(s) + CO2(g)ExplanationA balanced chemical equation is one where the number of atoms on both sides are equal. Chemical equations must be balanced because there is only a rearrangement of atoms in a reaction so the number of atoms you start off with must be the same as the number of atoms you end up with.If we take a look at the equation, we can see that there is 1 calcium atom, 1 carbon atom and 3 oxygen atoms present on both sides. As the number of these atoms on both sides are equal, the equation is balanced.
Two atoms. One calcium (Ca) and one oxygen (O).
calcium + oxygen --> calcium oxide Ca + O --> CaO
The symbol equation for the reaction between calcium and oxygen is: 2Ca + O2 -> 2CaO. This represents the combination of two atoms of calcium with one molecule of oxygen to form two molecules of calcium oxide.
'CaO' ; 1 x atom of calcium (Ca) 1 x atom of oxygen (O).