1. Main Grid Drill 201/14/13 List 3 characteristics of ionic compounds.

2. Main Grid Answer High melting point, high solubility, electrolyte

3. Midterm Review

4. Main Grid Scientific Investigation Chemical Formulas Atomic Structure and Periodicity Miscellaneous 100 200 300 400 500 600 700

5. Main Grid Scientific Investigation 100 Which of the following is a chemical change? A – melting wax B – boiling water C – painting black D – burning wood

6. Main Grid Scientific Investigation 200 Which of these is not an SI base unit? A - Kg B - s C - L D - K

7. Main Grid Scientific Investigation 300 What is the name of the lab equipment shown? F - Watch glass G - Crucible H - Beaker J - Evaporating dish

8. Main Grid Scientific Investigation 400 Which of the following is a homogenous mixture? A – carbon dioxide B – air C – a block of lead D – ice water

9. Main Grid Scientific Investigation 500 How many liters are equivalent to five milliliters? F - 0.005 L G - 0.05 L H - 500 L J - 5000 L

10. Main Grid Scientific Investigation 600 Trial Measured Volume (L) 1 5.20 2 5.20 3 5.19 4 5.20 5 5.20 The following data was collected. The volume of the gas is known to be 2.20 L. This data reflects — A - low precision and low accuracy B - low precision and high accuracy C - low accuracy and high precision D - high accuracy and high precision

11. Main Grid Scientific Investigation 700 Which of the following best describes why an experiment should be repeated? A - To organize the data B - To produce a variety of results C - To include another variable D - To verify the observed results

12. Main Grid Chemical Formulas - 100 The correct name for P 2 O 5 is — F - phosphorus (V) pentoxide G - phosphorus oxide H - phosphorus (II) oxide J - diphosphorus pentoxide

13. Main Grid Chemical Formulas - 200 The correct formula for copper (I) bromide is — A - CuBr B - CuBr 2 C - Cu 2 Br D - Cu 2 Br 3

14. Main Grid Chemical Formulas - 300 What type of bonds are present in (NH 4 ) 2 S? A – Ionic B – Covalent C – Ionic & Covalent D – There are no bonds

15. Main Grid Chemical Formulas - 400 What property does CF 4 most likely not have? A – High boiling point B – Soft and brittle C – Low conductivity D – Sharing of electrons

16. Main Grid Chemical Formulas - 500 How many atoms does (NH 4 ) 2 SO 4 have?NH SO A - 12 B - 18 C - 15 D - 10

17. Main Grid Chemical Formulas 600 What is the shape of CH 4 ? A – linear B – trigonal planar C – tetrahedral D – pyramidal

18. Main Grid Chemical Formulas - 700 The correct name for PbSO 3 is — A – Lead Sulfite B – Lead (II) Sulfite C – Lead(IV) Sulfate D – Lead Sulfur Trioxide

19. Main Grid Atomic Structure and Periodicity - 100 How many valence electrons does a neutral atom of silicon have? A - 3 B - 4 C - 5 D - 6

20. Main Grid Atomic Structure and Periodicity - 200 A scientist has found the following isotope of oxygen: 19 8 How many neutrons are present in this isotope? A - 8 B - 11 C - 19 D - 27 O

21. Main Grid Atomic Structure and Periodicity - 300 An atomic spectra can be used to determine the — F - composition of stars G - depth of the ocean H - distance between two mountains J - malignancy of a tumor

22. Main Grid Atomic Structure and Periodicity - 400 The net charge on an aluminum ion is 3+ because there are — F - 10 protons and 13 electrons in the atom G - 13 protons and 10 neutrons in the nucleus H - 10 neutrons and 13 electrons in the atom J - 13 protons and 10 electrons in the atom

23. Main Grid Atomic Structure and Periodicity - 500 Two atoms have the same electonegativity. This means when the two atoms bond, the resulting bond is — A - ionic B – metallic C - nonpolar covalent D – polar covalent

24. Main Grid Atomic Structure and Periodicity - 600 What is the main similarity among elements in group 2? F - Atomic radius G - Chemical properties H - Mass number J - Boiling point

25. Main Grid Atomic Structure and Periodicity - 700 Which of the following requires the least energy to remove an electron? A - Br B - K C - Al D - Na

26. Main Grid Misc. - 100 Compared to chemical reactions, nuclear reaction produce changes in the - A – electron structure and far more en. B – electron structure and less energy C – nucleus and far more energy D – nucleus and less energy

27. Main Grid Misc. - 200 Convert Convert 2.8 x 10 5 centimeters (cm) to kilometers (km). A – 20.8 km B – 2.8 km C – 0.28 km D – 0.028 km

28. Main Grid Misc - 300 The elements that are characterized as being highly reactive — A - alkali metals B - alkaline earth metals C - halogens D - lanthanoids

29. Main Grid Misc. - 400 Which of the following best describes sublimation? F - A solid melting to a liquid G - A solid melting to a liquid, which then evaporates H - The movement of gaseous particles so that they fill the space they occupy J - A solid forming a gas

30. Main Grid Misc - 500 Who determined that an atom is made up of mostly empty space using gold foil? A - Bohr B - Millikan C - Moseley D - Rutherford

31. Main Grid Misc. - 600 Dumbbell shaped orbital are called: A – s-orbitals B – p-orbitals C – d-orbitals D – f-orbitals

32. Main Grid Misc. - 700 What element is represented by [He]2s 2 2p 6 ? A – Ne B – Ca C – Ar D – Li