How is $$H_3O^+$$ ion formed?
A
$$H^+$$ + $$H^+$$ $$\rightarrow$$ $$H_3O^+$$
B
$$H_2O$$ + $$H_2O$$ $$\rightarrow$$ $$H_3O^+$$
C
$$H^+$$ + $$H_2$$ $$\rightarrow$$ $$H_3O^+$$
D
$$H^+$$ + $$H_2O$$ $$\rightarrow$$ $$H_3O^+$$
Correct option is D. $$H^+$$ + $$H_2O$$ $$\rightarrow$$ $$H_3O^+$$
$$\textbf{Concept Applied:}$$ An equation is balanced when the same number of each element is represented on the reactant and product sides. Equations must be balanced to accurately reflect the law of conservation of matter.
$$\textbf{Correct Option:}$$ D
$$\textbf{Explanation for correct option:}$$
Hydronium ion or $$H_3O^+$$ ion is formed when hydrogen ion combines with a water molecule.
$$H^+$$ + $$H_2O$$ $$\rightarrow$$ $$H_3O^+$$
$$\textbf{Explanation for incorrect options:}$$ in other option the chemical equcation is not balnced.