Question

Write word equation for the following skeletal equation: $Ca + {O_2} \to CaO$

Answer 1

Hint : A chemical equation in which the total number of atoms of any element on the reactant side is not equal to the number of atoms of the same element on the product side is known as an imbalanced equation. A skeleton equation is another name for this equation.

Complete Step By Step Answer:
Skeleton Equations are equations with simply the chemical formulas of the reactants and products, no mention of state, and no atom balancing on either side of the equation. A skeleton equation shows the chemical formulas and physical states of the reactants and products, but it does not account for their relative amounts. Chemical reactions result solely from the rearrangement of atoms, so the law of conservation of mass must be observed.
It is also known as an imbalanced equation, is one in which the number of atoms in the reactants and products are unequal. Such an equation violates the law of mass conservation.
In the given question the skeleton equation is given as;
$Ca + {O_2} \to CaO$
The reactants in the reaction are calcium and oxygen and the product formed is calcium oxide. And it is clear that the equation is also not balanced. There is no information conveyed through this equation about the number of moles of each compound required for the reaction.
Thus we can write word equation as:
$Sodium + Oxygen \to Calcium\,oxide$.

Note :
Skeletal chemical equations are described as chemical equations that are not balanced. But it is necessary to find a balance because mass cannot be formed or lost, and the number of atoms on the reactant side must be equal to the number of compounds on the product side.