AP Chem
Test 1
1. Potassium dichromate
A. K2Cr2O7 B. K2CrO4 C. K2Cr2O8 D. K3CrO4 E. KCr2O7
2. Chloric acid
A. HCl B. HClO C. HClO2 D. HClO3 E. HClO4
3. Iron (III) phosphate
A. FePO4 B. Fe2PO4 C. Fe(PO4)2 D. Fe2(PO4)3 E. Fe3(PO4)2
4. Strontium nitrate
A. SrNO3 B. Sr(NO3)2 C. Sr2NO3 D. Sr3N2 E. Sr2N3
5. Periodic acid
A. HI B. HIO C. HIO2 D. HIO3 E. HIO4
6. Na2SO3
A. Sodium sulfide B. Sodium sulfate C. Sodium sulfite D. Sodium persulfate E. Sodium hyposulfite
7. HC2H3O2
A. Oxalic acid B. Acetic acid C. Propanoic acid D. Cyanic acid E. Hydrocyanic acid
8. P2O5
A. Phosphorus oxide B. Phosphorus pentoxide C. Diphosphorus oxide D. Diphosphorus pentoxide E. Phosphorus (V) oxide
9-14
A. proton
B. neutron
C. electron
D. alpha particle
E. positron
9. Heaviest
10. most easily stopped
11. no electrical charge
12. least stable
13. type of matter discovered last
14. determines atomic number
15. Give the product of the alpha decay of plutonium-239
A. 235Pu B. 235U C. 237Np D. 231Th E. 231U
16. Give the product of the beta decay of phosphorus-29.
A. 29Si B. 28P C. 28S D. 28Si E. 29S
17. Give the product when sodium-22 undergoes positron emission.
A. 22Ne B. 22Mg C. 21Na D. 23Mg E. 23Ne
18. Give the product when gold-195 undergoes electron capture.
A. 196Au B. 194Au C. 191Ir D. 195Pt E. 195Hg
19-23 Finish the following nuclear equations
19. 214Bi = e- + ___
A. 214Po B. 214Pb C. 213Bi D. 213Pb E. 213Po
20. 38K = 38Ar +
A. alpha particle B. electron C. positron D. gamma ray E. proton
21. 230Th = 4He +
A. 234U B. 226Ra C. 228Ra D. 230U E. 226Rn
22. 7Be + e- =
A. 7B B. 6Li C. 7Li D. 6Be E. 7Be
23. 235U + 1n = 135Te + 1n +
A. 100Zr B. 101Nb C. 99Y D. 135I E. none of these
24-27 Predict which decay process the following will undergo:
24. 14C
A. alpha B. beta C. gamma D. electron capture E. positron emission
25. 104Ag
A. alpha B. beta C. gamma D. electron capture E. positron emission
26. 67Cu
A. alpha B. beta C. gamma D. electron capture E. positron emission
27. 11C
A. alpha B. beta C. gamma D. electron capture E. positron emission
28. Which of the following is most likely a stable isotope?
A. 68Cu B. 11Be C. 24Si D. 66Zn E. 42K
29. Which of the following is most likely a stable isotope?
A. 35 protons, 41 neutrons
B. 36 protons, 44 neutrons
C. 35 protons, 42 neutrons
D. 36 protons, 41 neutrons
E. can’t be determined
30. Describe Rutherford’s gold foil experiment and its significance.
31. Calculate the binding energy for uranium-235 if uranium-235 has a mass of 235.049 amu. Neutron mass: 1.0087 amu Hydrogen-1 mass: 1.0078 amu 1.66X10-27kg = 1 amu