Quiz Date: Wednesday, September 16th Chemistry Quiz Review Quiz Date: Wednesday, September 16th

Elements and Atoms Atom: The smallest particle of a type of matter that has all the same characteristics as that type of matter. Elements: Matter that are made up of only one kind of atom.

Chemical Formulas Formula Name # of Elements Names of the elements # of atoms of each element Total # of atoms in a molecule 3. SnCl2I2 Tin dichlorodiiodide 3 Tin Chlorine Iodine Sn = 1 Cl = 2 I = 2 5 4. ZnSO4 Zinc Sulfate Zinc Sulfur Oxygen Zn = 1 S = 1 O = 4 6 5. POCl3 Phosphoryl Chloride Phosphorus P = 1 O = 1 Cl = 3

Protons, Neutrons, and Electrons Element # or Protons # of Neutrons # of Electrons 6. Sb (51) 51 71 7. Br (35) 35 45 8. Tb (65) 65 94 9. Pt (78) 78 117

Acids Number 10 The characteristics of acids are: Sour Taste Reacts with and corrodes (wears away) metals Turns blue litmus paper red Become less acidic when mixed with bases Contain at least one hydrogen atom Release positive hydrogen ions (H+) in water

Bases Number 11 Robert Boyle characterized bases to: Feel slippery Change red litmus paper blue Taste bitter Become less alkaline (or basic) when mixed with acids Have a hydroxide molecule (OH-) Release hydroxide molecules when mixed in water.

Acids turn blue litmus paper red Litmus Paper Number 12 Acids turn blue litmus paper red

Litmus Paper Number 13 Bases change RED litmus paper BLUE

Bases Number 14 Another name for a base is: ALKALINE

Neutral Number 15 If a solution is neutral, its pH will be 7. An example of a neutral solution is water. Other neutral solutions are milk and whey.

Ions Number 16 An ion is an atom where the number of protons and electrons is not equal, creating either a positive or negative electrical charge.

Quiz Details Your quiz has 26 questions and looks a lot like the review sheet. The only key difference is that instead of short answer questions, the back of the quiz is fill-in-the-blank. I haven’t yet decided for or against a word bank, so study as if you aren’t going to have one.