## General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

1. Identify and count the significant zeros: (a) $11.\underline{00}5 \space g$ : 2 (b) $0.00032 \space m$ : 0 (c) $36000000 \space km$ : 0 (d) $1.8\underline{0} \times 10^4 \space kg$ : 1 (e) $0.825\underline 0 \space L$ : 1 (f) $3\underline{0.0} \space ^{\circ} C$ : 2 2. Sum the number of nonzero digits and significant zeros. (a) 3 + 2 = 5 (b) 2 + 0 = 2 (c) 2 + 0 = 2 (d) 2 + 1 = 3 (e) 3 + 1 = 4 (f) 1 + 2 = 3