How many iron(II) ions, Fe2+ are there in 5.00 g of FeSO4? A) 5.46 × 10-26  iron (II) ions B) 1.98 × 1022  iron (II) ions C) 1.83 × 1025  iron (II) ions D) 4.58 × 1026 iron (II) ions  

Fill in the following chart below with an X or a check mark if each group possesses each trait.     Characteristi Archaea Bacteria Eukaryotes Circular chromosome Lack peptidoglycan in the cell wall Histones are associated with DNA Lacks membrane bound organelles Lacks nuclear envelopes Inhibited by penicillin or lysozyme

What is a m6 LOWER than Ab? ____

__________________ are microbes that optimally grow at pH 8.5 & higher.

What is the empirical formula for perfluoropropane if the compound contains 81% fluorine and 19% carbon by mass? A) CF3 B) C2F8 C) C3F8 D) C19F81

What is the mass of 0.500 mol of dichlorodifluoromethane, CF2Cl2? A) 4.14 × 10-3g B) 60.5 g C) 121 g D) 242 g  

How many oxygen atoms are in 3.00 g of sodium dichromate, Na2Cr2O7? A) 0.0801 oxygen atoms B) 9.85 × 1020  oxygen atoms C) 6.90 × 1021  oxygen atoms D) 4.83 × 1022  oxygen atoms  

What is a m3 higher than C? ____

Which of the following has the greatest mass? A) 6.02 × 1023 molecules of O2 B) 16.0 g of O2 C) 0.500 mol of O2 D) All of the above have the same mass.

If the bottom number of a time signature is 4, what kind of note is equal to 1 beat?