2. When magnesium reacts with bromine, each magnesium atom ____ electon(s) and each bromine atom ____ electron(s) gains 2, loses 1 loses 2, gains 1 gains 2, loses 2 loses 1, gains 2
3. The hydrogen to chlorine bond in HCl is: polar covalent nonpolar covalent ionic hydrogen
4. The sulfur to sulfur bond in S8 is: polar covalent nonpolar covalent ionic hydrogen
5. The potassium to iodide bond in KI is: polar covalent nonpolar covalent ionic hydrogen
6. The total number of atoms in Ba3(PO4)2 is: 5 8 12 13
7. One mole of carbon dioxide contains ___ oxygen atoms. one mole of two moles of one half mole of no moles of
8. What is the name of F-? Fluorine ion Fluorine (I) ion Fluorine Fluoride ion
9. Which of the following is the correct formula for a phosphide ion? P3+ P3- P5+ P5-
10. What is the formula for magnesium oxide? Mg2O MgO2 MgO Mg2O2
11. What is the formula for sodium sulfide? NaS2 Na2S NaS Na2S3
12. What is the formula for aluminum bromide? Al3Br AlBr3 Al2Br3 Al3Br2
13. What is the correct name for MgF2? Magnesium difluoride Magnesium (II) fluoride Magnesium fluoride Dimagnesium fluoride
14. What is the correct formula for ferric sulfide? Fe2S3 Fe3S2 Fe3S Fe2S
15. What is the correct formula for chromium (II) chloride? Cr2Cl3 Cr2Cl CrCl2 CrCl4
16. What is the correct name for Cu3P2? Copper (III) diphosphide Copper (III) phosphide Copper (I) phosphide Copper (II) phosphide
17. What is the correct name for PCl5? Phosphorous Tetrachloride Phosphorous (V) chloride Potassium (V) chloride Phosphorous Pentachloride
18. What is the correct formula for dinitrogen tetroxide? N4O2 NO2 N2O4 NO4
19. What is the correct name for NaC2H3O2? Sodium dichromate Sodium oxalate Sodium hydrogen carbonate Sodium acetate
20. What is the formula for potassium sulfate? K2SO3 K2SO4 KSO4 K2S
21. What is the molar mass of Fe2(SO4)3? 207.77 g/mol 335.76 g/mol 399.91 g/mol 271.91 g/mol
22. How many g is 0.485 mol of Au(CN)3? The molar mass of Au(CN)3 is 275.03 g/mol. 567 g 275 g 133 g 0.00176 g
23. The pressure of 1000 mm Hg is equal to one atmosphere True False
24. Melting and freezing occur at the same temperature. True False
25. A catalyst lowers the amount of energy released in an endothermic reaction. True False
Score = Correct answers: