+ What is the coefficient in front of oxygen when the following equation is correctly balanced? C2H6(g) + O2(g) + CO2(g)
Posted: Wed May 18, 2022 12:49 pm
- What Is The Coefficient In Front Of Oxygen When The Following Equation Is Correctly Balanced C2h6 G O2 G Co2 G 1 (146.04 KiB) Viewed 55 times
+ What is the coefficient in front of oxygen when the following equation is correctly balanced? C2H6(g) + O2(g) + CO2(g) + H2O(g) A) 3 B) 6 C) 7 D) 2 Predict products when the following reactants are combined: sulfuric acid and potassium hydroxide. A) KSO4 and H2O B) H2SO4 and KOH C) K2SO4 and H2O D) KOH and K2SO4 What is formula of precipitate formed when solutions of sodium sulfate and calcium nitrate are mixed? A) NaNO3 B) CaSO4 C) Ca(NO3)2 D) Na2SO4 What are spectator ions when solutions of lead (II) nitrate and sodium bromide are mixed? A) Na and NO3 B) Pb2+ and Br C) Naand Br D) Pb2+ and NO3- 10. Which one of the following is not a redox reaction? A) 2H2O2(aq) → 2H2O(l) + O2(g) B) N2(g) + 3H2(g) + 2NH3(g) C) 2Al(s) + Fe2O3(s) → Al2O3(s) + 2Fe(s) D) BaCl2(aq) + K2CrO4(aq) → BaCrO4(aq) + 2KCl(aq) + - - - W. Which of the following chemical reactions is an oxidation-reduction reaction? A) H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2H2O(1) B) NaOH(aq) + HCl(aq) + NaCl(aq) + H2O(1) C) Zn(s) + S(s) → ZnS(s) D) CO2(aq) + H2O(aq) → H2CO3(aq) E) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) -> - 12. Determine the oxidation state of nitrogen in NO2. A) -3 B) -2 C +3 D) +4