Name each of the following compounds: a. BaSO3 c. KMnO4 b. NaNO2 d. K2Cr2O7

9/6/17 Sig figs: 7.325g 130g + 10.1g + 5.0g 17.4g 135.0g Muti/division: the answer should have no more decimal places than the nuber calculation with the fewest decimal places. 7.325cm * 10.1cm 73.9825 cm^2 = 74.0 cm^2 5.32 – 0.7 / 25 = 0.1848 0.18 ^ 4.62 73.21 * 0.10 = 7.3 Scientific Notation: Avogadro’s Number N A = 6.022*10^23 A large number 1,275000 scientific notation; shift exponent left (positive) = 1.275 *10^6 Smaller number 0.0001239 sci notation shift exp. Right (negative) =1.239 *10^4 275 2.75 *10^2 0.032 3.2*10^2 Sci to expanded form positive exp. 3.75*10^9 undo sh