January 2020 NY Regents Chemistry Exam 22 Which process can be represented by a half- reaction equation? (1) distillation (2) oxidation...

January 2020 NY Regents Chemistry Exam 21 Which particles are transferred during a redox reaction? (1) atoms (2) electrons (3) neutrons...

June 2017 NY Regents Chemistry Exam 45 Given the equation representing a reversible reaction: HCO3-(aq) + H2O(l) -> H2CO3(aq) + OH-(aq)...

June 2017 NY Regents Chemistry Exam 40 Which statement explains why 10.0 mL of a 0.50 M H2SO4(aq) solution exactly neutralizes 5.0 mL of...

June 2017 NY Regents Chemistry Exam 30 Which pair of compounds represents one Arrhenius acid and one Arrhenius base? (1) CH3OH and NaOH...

June 2018 NY Regents Chemistry Exam 50 Given the balanced equation representing a reaction: HCl + H2O→H3O+ + Cl- The water molecule acts...

June 2018 NY Regents Chemistry Exam 26 Which equation represents neutralization? (1) 6Li(s) + N2(g) → 2Li3N(s) (2) 2Mg(s) + O2(g) →...

June 2018 NY Regents Chemistry Exam 25 The concentration of which ion is increased when LiOH is dissolved in water? (1) hydroxide ion (2)...

January 2018 NY Regents Chemistry Exam 48 When the concentration of hydrogen ions in a solution is decreased by a factor of ten, the pH...

January 2018 NY Regents Chemistry Exam 47 Why is potassium nitrate classified as an electrolyte? (1) It is a molecular compound. (2) It...