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11 Nov 2019
EX A. In the below compounds, which phosphorus atom has an oxidation number closest to zero? a. HPO b. H,PO c. HPO, d. H,PO e. H, P2O, EX B. Balanced chemical equations imply which of the following? a. Numbers of molecules are conserved in chemical change b. Numbers of atoms are conserved in chemical change c. Volume is conserved in chemical change. d. Exactl e. None of the above statements are true y two of the above statements are true. EX C. Potassium hydroxide, sodium phosphate, and magnesium bromide all form homogeneous solutions when added to water. Of these three, would be considered strong electrolytes. a. none one c. two d. three EX D. Which of the following reactions does not involve oxidation-reduction? a, CH4 + 3 0, â 2H2O + CO2 b, Zn + 2 HCl â ZnCl, + H, c, 2 Na + 2 H2O â 2 NaOH H, d. MnO, + 4 HCl â Cl2 + 2 H2O + MnCL e. All are oxidation-reduction reactions EX D. Which of the following is not an example of a redox equation? a. 3 H2(g) + Nfg) â 2 NH3(g) b. MgL(aq) + 2 NaOH(aq) â Mg(OH)2(s) + 2 Nal(ag) c. Zn(s) + CuSO4(ag) â ZnSO4(aq) + Cu(s) d. CH4(g) + 2 O2(g) â CO2(g) + 2 H,o@ EX F. Which of the following compounds is soluble in water? a. Ni(OH b. K,PO c. BaSO, d. CoCO e. PbCl
EX A. In the below compounds, which phosphorus atom has an oxidation number closest to zero? a. HPO b. H,PO c. HPO, d. H,PO e. H, P2O, EX B. Balanced chemical equations imply which of the following? a. Numbers of molecules are conserved in chemical change b. Numbers of atoms are conserved in chemical change c. Volume is conserved in chemical change. d. Exactl e. None of the above statements are true y two of the above statements are true. EX C. Potassium hydroxide, sodium phosphate, and magnesium bromide all form homogeneous solutions when added to water. Of these three, would be considered strong electrolytes. a. none one c. two d. three EX D. Which of the following reactions does not involve oxidation-reduction? a, CH4 + 3 0, â 2H2O + CO2 b, Zn + 2 HCl â ZnCl, + H, c, 2 Na + 2 H2O â 2 NaOH H, d. MnO, + 4 HCl â Cl2 + 2 H2O + MnCL e. All are oxidation-reduction reactions EX D. Which of the following is not an example of a redox equation? a. 3 H2(g) + Nfg) â 2 NH3(g) b. MgL(aq) + 2 NaOH(aq) â Mg(OH)2(s) + 2 Nal(ag) c. Zn(s) + CuSO4(ag) â ZnSO4(aq) + Cu(s) d. CH4(g) + 2 O2(g) â CO2(g) + 2 H,o@ EX F. Which of the following compounds is soluble in water? a. Ni(OH b. K,PO c. BaSO, d. CoCO e. PbCl
Lelia LubowitzLv2
20 Oct 2019