18. Use the activity series to predict whether the following synthesis reaction will occur. Write the chemical equations for the reaction if it's predicted to occur.
_Ca(s) + _ O2(g) -> ____
Note: It is possible.

Synthesis reaction is defined as a chemical reaction in which two small chemical substances combine together to form a single compound. The general equation for this chemical reaction follows:

[tex]A+B\rightarrow AB[/tex]

For the reaction of calcium and oxygen combining together to form calcium oxide, the equation follows:

[tex]2Ca(s)+O_2(g)\rightarrow 2CaO(s)[/tex]

By Stoichiometry,

2 moles of calcium element combines together with 1 mole of oxygen gas to produce 2 moles of calcium oxide.

Hence, the chemical equation for the reaction is given above.

18. Use the activity series to predict whether the following synthesis reaction will occur. Write the chemical equations for the reaction if it's predicted to occur. ___Ca(s) + ___ O2(g) -> ____ *Note: It is possible.*

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18. Use the activity series to predict whether the following synthesis reaction will occur. Write the chemical equations for the reaction if it's predicted to occur.
_Ca(s) + _ O2(g) -> ____
Note: It is possible.