1. Hypochlorous acid is related to the anion found in common household bleach. Which of the following is that common anion? 1.ClO 4 – 2.ClO 3 – 3.ClO 2 – 4.ClO – Make Up Warm #1

2. Make Up Warm Up #2 What is the correct name for this compound? Na 2 O 2 1.Disodium dioxide 2.Sodium (I) peroxide 3.Disodium peroxide 4.Sodium peroxide

3. Make Up Warm Up #3 Of the following which provides the most acceptable name for Cr 2 O 7 2– ? 1.Dichromium heptoxide 2.Dichromium heptoxide ion 3.Chromium (VI) oxide 4.Dichromate ion

4. Make Up Warm Up #4 Of the following, which provides the most acceptable name for Fe 2 (C 2 O 4 ) 3 ? 1.Iron (II) oxalate 2.Iron (II) oxalate (III) 3.Iron (III) trioxalate 4.Iron (III) oxalate

5. Make Up Warm Up #5 Currently we can measure relative atomic mass using an instrument known as a mass spectrometer. However, the masses of atoms are still not reported as whole numbers. What is the chief reason for this? 1.Atoms are so small that even modern techniques have a limited accuracy that keeps the value from being a whole number. 2.The atomic mass scale is based on carbon-12 and since this atom does not have a whole number mass the comparisons will not be able to have whole number mass also. 3.Isotopic abundance is averaged to provide the mass of atoms. 4.Atomic mass units figure in here, but I am not sure how.

6. Make Up Warm Up #6 Since it is extremely difficult to “see” atoms without elaborate equipment, chemists rely on the atomic mass scale when we need to determine the number of atoms in a sample. An analogy for this type of counting would be as follows: A U.S. nickel coin has a mass of approximately 5.0 grams. How many nickels make up $100? What would be the mass of the money? (By the way, could you lift $100 worth of nickels?) 1.2 000 nickels; 10 000 grams; yes 2.2 000 nickels; 10 000 grams; probably not 3.20 000 nickels; 100 000 grams; yes 4.20 000 nickels; 100 000 grams; not likely