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- The following are properties of substances. Decide whether each is a physical property or a chemical property. a Chlorine gas liquefies at 35C under normal pressure. b Hydrogen burns in chlorine gas. c Bromine melts at 7.2C. d Lithium is a soft, silvery-colored metal. e Iron rusts in an atmosphere of moist air.9.121 x 10^-2 + 9.92 x 10^-3 =. ___Consider the following operations on the number 8.97 x 10-2 Without using a calculator, decide which would give a significantly smaller value than 8.97 × 10-2, which would give a significantly larger value, or which would give essentially the same value. -96 8.97 x 10-2 + 7.00 x 10 same -2 8.97 x 10 7.00 x 10-6 smaller | -2 -96 8.97 x 10 х 7.00 x 10 larger 8.97 x 10-2 ÷ 7.00 x 10-6 smaller
- Q: (4.80 x 10^{-107}) X (5.00 x 10^{-11})= a 2.40 x 10^{-96} b 24.0 x 10^{-96} c 2.40 x 10^{-118} d 2.40 x 10^{-117}Complete the following operations and write your answer with the correct number of significant figures. Use scientific notation when appropriate. (7.87 x 10-5)(1.84 x 10-2) =Use data given below to calculate A,S° for each of the reactions. Standard Thermodynamic Quantities for Selected Substances at 25 ° C Substance A‚S°,J K-1 mol-1 Fe (s) 27.3 Fe2 O3 (s) CO (g) 87.4 197.7 CO2 (g) 213.8 На (9) 130.7 H2O (g) H2O (1) 188.8 70.0 HNO3 (aq) 146.0 N2 (g) 191.6 N204 (9) 304.4 NO (g) 210.8 NO2 (g) 240.1 O2 (g) KC103 (s) KC104 (8) 205.2 143.1 151.0
- Complete each of the following calculations, and give your answer to the correct number of significant figures. 710/33= Express your answer to the correct number of significant figures. Submit Part B Submit Part C ΑΣΦ 0.05 +23.3= Express your answer to the correct number of significant figures. Request Answer Submit ΑΣΦ Request Answer ? VE ΑΣΦ 0.00303 x 101 = Express your answer to the correct number of significant figures. ? ? Previous Answers Request AnswerThe density of a cooking oil is 0.92g/cm^3 calculate the mass in grams g for an oil droplet has a volume of 5.34 x 10^-4 cm^3For the following calculations and questions, use all applicable rules of sig figs and rounding to determine the answers: 0.53 x 12.3 x 1.321 = 15.1 + 20. + 130 = How many sig figs in the number 0.00040 How many sig figs in the number 500. What is the exact answer to 8.00/4.00 =