Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with o2(g).
Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with o2(g).
Ca (s) + O2 (g) = CaO (s)
When calcium joins with calcium its follows the following equation:
2Ca + O2 = 2CaO
hope that helps
2Ca(s)+O2(g)--->2CaO(s)
In order to balance this, you have to count each element where the elements in the reactants side and the product side should have equal number of molecules. The balanced reaction is as follows:
2 Ca + O2 ---> 2CaO
1) reactants: Ca + O2 (g)
2) Unbalanced equation: Ca + O2 (g) -> CaO
3) Balanced equation: 2Ca + O2 (g) -> 2CaO