The triple point where a solid-liquid-gas equilibrium exists is:
O 1
02
O 3

The answer will be c

Ansa leaf changing color in autumn;

In reversible reaction chemistry equilibrium is attained when the forward and reverse reactions are taking place at the same rate, thus, the concentrations of reactants and products remain the same. a reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back. in irreversible reactions on the other hand, the reactants react to form the products, which cannot revert back into reactants.

A)  it is neutral because the concentration of hydronium ions equals that of hydroxide ions