Δs is negative for the reaction a.2so2 (g) + o2 (g) → 2so3 (g) b. nh4cl (s) → nh3 (g) + hcl (g) c. pbcl2 (s) → pb2+ (aq) + 2cl- (aq) d.2c (s) + o2 (g) → 2co2 (g) e. h2o (l) → h2o (g)

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s