7. What is the mass in grams of 5.00×1012 water molecules? (A) 1.67×1012 g (B) 6.69×109 g (C) 4.61×10-13 g (D) 1.50×10-10 g

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) \( \text{Na}^+(aq) + \text{NO}_3^-(aq) \rightarrow \text{NaNO}_3(s) \)

7. What is the mass in grams of 5.00×10¹² water molecules?
(A) 1.67×10¹²g
(B) 6.69×10⁹g
(C) 4.61×10^-13g
(D) 1.50×10^-10g

相關試題

相關試卷

7. What is the mass in grams of 5.00×1012 water molecules?(A) 1.67×1012 g(B) 6.69×109 g(C) 4.61×10-13 g(D) 1.50×10-10 g

相關試題

相關試卷

7. What is the mass in grams of 5.00×10¹² water molecules?
(A) 1.67×10¹²g
(B) 6.69×10⁹g
(C) 4.61×10^-13g
(D) 1.50×10^-10g