August 2018 NY Regents Chemistry Exam 37 Given the balanced equation representing a reaction: 2H2 + O2 → 2H2O + energy Which type of...

August 2018 NY Regents Chemistry Exam 34 Which formula represents ammonium nitrate? (1) NH4NO3 (2) NH4NO2 (3) NH4(NO3)2 (4) NH4(NO2)2...

January 2019 NY Regents Chemistry Exam 34 What is the formula for iron(II) oxide? (1) FeO (2) FeO2 (3) Fe2O (4) Fe2O3 Solution: This...

January 2019 NY Regents Chemistry Exam 33 Given the equation representing a chemical reaction: NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s)...

August 2019 NY Regents Chemistry Exam 34 What is the chemical name of the compound NH4SCN? (1) ammonium thiocyanate (2) ammonium cyanide...

January 2020 NY Regents Chemistry Exam 39 Which equation represents a single replacement reaction? (1) 2Al(s) + 3Cl2(g) → 2AlCl3(s) (2) ...

January 2020 NY Regents Chemistry Exam 36 What is the chemical formula for sodium oxalate? (1) NaO (2) Na2O (3) NaC2O4 (4) Na2C2O4...

June 2023 Regents Chemistry Exam 38 Given the equation representing a reaction: F2g) + 2KCl(aq) → 2KF(aq) + Cl2g) Which type of chemical...

June 2023 NY Regents Chemistry Exam 36 Which formula represents calcium hydride? (1) CaH (2) CaH2 (3) CaOH (4) Ca(OH)2 Solution: Calcium...

June 2017 NY Regents Chemistry Exam 50 Which graph shows the relationship between pressure and Kelvin temperature for an ideal gas at...