5. Which sample contains the greatest number of molecules? (A) 1.0 g of CH4 (B) 1.0 g of H2O (C) 1.0 g of HNO3 (D) 1.0 g of N2O4

12. Lead(II) nitrate reacts with sodium chloride in aqueous solution to form a precipitate. What is the net ionic equation for this reaction?(A) \( \text{Pb}^{2+}(aq) + 2\text{NO}_3^-(aq) \rightarrow \text{Pb}(\text{NO}_3)_2(s) \) (B) \( \text{Na}^+(aq) + \text{Cl}^-(aq) \rightarrow \text{NaCl}(s) \) (C) \( \text{Pb}^{2+}(aq) + 2\text{Cl}^-(aq) \rightarrow \text{PbCl}_2(s) \) (D) \( \text{Na}^+(aq) + \text{NO}_3^-(aq) \rightarrow \text{NaNO}_3(s) \)

5. Which sample contains the greatest number of molecules?
(A) 1.0 g of CH₄
(B) 1.0 g of H₂O
(C) 1.0 g of HNO₃
(D) 1.0 g of N₂O₄

相關試題

相關試卷

5. Which sample contains the greatest number of molecules?(A) 1.0 g of CH4(B) 1.0 g of H2O(C) 1.0 g of HNO3(D) 1.0 g of N2O4

相關試題

相關試卷

5. Which sample contains the greatest number of molecules?
(A) 1.0 g of CH₄
(B) 1.0 g of H₂O
(C) 1.0 g of HNO₃
(D) 1.0 g of N₂O₄