Chemical EquilibriumSolubility Product81Choose the best answerFor a sparingly soluble salt, the solubility product (Ksp) is mainly used to predict:ARate of dissolutionBWhether precipitation will occurCHeat of solutionDColour of the salt Like 1 Discuss 0Share
Chemical EquilibriumCommon-Ion Effect82Choose the best answerWhich pair is a standard example of the common-ion effect suppressing the ionization of a weak base?ABaCl₂ + Ba(NO₃)₂BNaCl + HClCNH₄OH + NH₄ClDAgNO₃ + KNO₃ Like 0 Discuss 0Share
Chemical EquilibriumReversible Reactions83Choose the best answerWhich is a characteristic of a reversible reaction in a closed system?AReactants and products must have equal molesBIt always proceeds completely to productsCIt generally does not proceed completely in either directionDThe backward reaction cannot occur Like 0 Discuss 0Share
Chemical EquilibriumSolubility Product Ksp84Choose the best answerThe correct solubility-product expression for SnS₂ is:AKsp = [Sn⁴⁺][S²⁻]²BKsp = [Sn²⁺][S²⁻]²CKsp = [Sn²⁺][2S²⁻]DKsp = [Sn⁴⁺][2S²⁻]² Like 0 Discuss 0Share
Chemical EquilibriumReversible Reactions85Choose the best answerA reversible reaction is one that:AProceeds only in the forward directionBCan proceed in both forward and backward directionsCAlways proceeds spontaneously to completionDCannot attain equilibrium Like 0 Discuss 0Share