You have found a substance. Explain and give the results of three sets of tests you would carry out to discover whether the substance is acidic or alkaline

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

Answercanyon;

Abronsted lowry acid by donating a proton

Asolution is a mixture of 2 or more substances which are called a solute and a solvent