January 2018 NY Regents Chemistry Exam 27 According to one acid-base theory, a molecule acts as an acid when the molecule (1) accepts an...

January 2018 NY Regents Chemistry Exam 26 Which type of reaction occurs when H+(aq) reacts with OH-(aq)? (1) combustion (2)...

January 2018 NY Regents Chemistry Exam 24 Which substance is an Arrhenius acid? (1) HBr (2) NaBr (3) NaOH (4) NH3 Solution: The...

August 2018 NY Regents Chemistry Exam 49 Compared to a 1.0-liter aqueous solution with a pH of 7.0, a 1.0-liter aqueous solution with a...

August 2018 NY Regents Chemistry Exam 48 Which solution is the best conductor of an electric current? (1) 0.001 mole of NaCl dissolved...

January 2019 NY Regents Chemistry Exam 48 The table below shows the molar concentrations of hydronium ion, H3O+, in four different...

January 2019 NY Regents Chemistry Exam 28 Which type of reaction occurs when an Arrhenius acid reacts with an Arrhenius base to form a...

January 2019 NY Regents Chemistry Exam 27 Which statement describes an electrolyte? (1) An electrolyte conducts an electric current as...

January 2019 NY Regents Chemistry Exam 26 Which substance is an Arrhenius acid? (1) H2 (2) HCl (3) KCl (4) NH3 Solution: The definition...

August 2019 NY regents chemistry exam 48 Which equation represents a neutralization reaction? (1) 6HClO → 4HCl + 2HClO3 (2) CH4 +2O2 →CO2...