Determining the Number of Significant Figures in a Measurement

How many significant figures are in each of the following numbers (assume that each number is a measured quantity)? (a) 4.003, (b) 6.023 * 1023, (c) 5000.

How many significant figures are in each of the following measurements? (a) 3.549 g, (b) 2.3 x 104 cm, (c) 0.00134 m3.

Quiz 5 Chemical Equation: Shorthand way of specifying a chemical reaction. Reactants (left side) -> Products (right side) All chemical equations must be balanced: 1. Material balance: number of atoms of each element must be the same on both sides of the equation. 2. Charge Balance: net charge on reactant side must be equal to net charge on product side, A. SO +2O (fo2r oxygen) -> SO (oxygen 3hree) a. 2 SO + 2 (2 s2lfur, 6 oxygen)-> 2 SO (2 sulfur3 6 oxygen) b. The equation is now balanced. c. Charge is balanced and equal to zero. B. (NH )4 2 O2->7Cr O + 2 3 4 H 2 2 a. (2 N, 8 H, 2 Cr, 7 O) -> (2 N, 8 H, 2 Cr, 7 O) balanced b. Charge is also balanced and