Regents Chemistry Exam August 2025 Question 47 47  Which aqueous solution of LiCl is the best conductor of an electric current? (1) 0.1 M LiCl(aq) (3) 0.001 M LiCl(aq) (2) 0.01 M LiCl(aq) (4) 0.0001 M LiCl(aq) Solution: The higher the concentration of the solution, the better the electrical conductivity. Choice 1 has the highest concentration and should be the correct answer choice. LINKS: Regents Chemistry Guides and Solutions Chemistry Tutoring More Regents Chemistry Practi

Regents Chemistry Exam August 2025 Question 46 Given the balanced ionic equation: (1) 1 mol (3) 3 mol (2) 2 mol (4) 4 mol Solution: The number of moles gained has to be equal to the number of moles lost in a balanced equation. Since tin loses 2 moles of electrons, iron ion will gain 2 moles of electrons. Choice 2 is the correct answer. LINKS: Regents Chemistry Guides and Solutions Chemistry Tutoring More Regents Chemistry Practice