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15 Nov 2019
y-(6.75x 10)-(5.44 x 10) 7 Given the two r mesns X 0,00957 /2 94645 The best answers for "X" and "Y" are 4.765 x 10-2 and D. 3.2480 x 10-3 and-4.765x 10-2 10-1 B. 3.25 x 103 A. 3.25 x 10 C. 0.00325 and 4.765 x 10- and 4.76 x 102 E. 3.2480 x 103 and 4.76 x 10- 8. In the correct order, identify whether the dots on the figures below are accurate, precise, both accurate & precise, or neither accurate nor precise: Figure 1 Figure 2 Figure 3 Figure 4 A. Precise, Accurate, Neither, Both B. Accurate, Precise, Neither, Both C. Precise, Accurate, Both, Neither D. Both, Accurate, Neither, Precise E. Both, Precise, Neither, Accurate 9. In the Laboratory Measurement experiment, an Erlenmeyer flask has a mass of 109.89 g. Upon addition of 30.00 mL ethanol, the mass of the flask was 134.22 g. What is the calculated density of ethanol? A. 3.663 g/mL B. 0.8110 g/mL C. 1.233 m/g D.4.474 gmL E. 02235 mUg 10. What is the density of an unknown metal, with the proper number of significant figures, given the following data: Mass of metal sample: 18.567 g Initial Volume of graduated cylinder: 48.8 mL Final Volume of graduated cylinder: 53.3 mL A. 4.6 g/mL B. 0.269 mL/g C. 4.1 g/ml D. 0.348 ml/g E. 0.35 g/mL 11. Given the ruler (i.e., meter stick) below, what is the measurement reading of this object (with the correct number of significant figures)? 0 .1 2 .3 4 5 A. 0.26 m B. 0.2610 m C. 0.26100 m D. 0.260 m E. 0.2600 m
y-(6.75x 10)-(5.44 x 10) 7 Given the two r mesns X 0,00957 /2 94645 The best answers for "X" and "Y" are 4.765 x 10-2 and D. 3.2480 x 10-3 and-4.765x 10-2 10-1 B. 3.25 x 103 A. 3.25 x 10 C. 0.00325 and 4.765 x 10- and 4.76 x 102 E. 3.2480 x 103 and 4.76 x 10- 8. In the correct order, identify whether the dots on the figures below are accurate, precise, both accurate & precise, or neither accurate nor precise: Figure 1 Figure 2 Figure 3 Figure 4 A. Precise, Accurate, Neither, Both B. Accurate, Precise, Neither, Both C. Precise, Accurate, Both, Neither D. Both, Accurate, Neither, Precise E. Both, Precise, Neither, Accurate 9. In the Laboratory Measurement experiment, an Erlenmeyer flask has a mass of 109.89 g. Upon addition of 30.00 mL ethanol, the mass of the flask was 134.22 g. What is the calculated density of ethanol? A. 3.663 g/mL B. 0.8110 g/mL C. 1.233 m/g D.4.474 gmL E. 02235 mUg 10. What is the density of an unknown metal, with the proper number of significant figures, given the following data: Mass of metal sample: 18.567 g Initial Volume of graduated cylinder: 48.8 mL Final Volume of graduated cylinder: 53.3 mL A. 4.6 g/mL B. 0.269 mL/g C. 4.1 g/ml D. 0.348 ml/g E. 0.35 g/mL 11. Given the ruler (i.e., meter stick) below, what is the measurement reading of this object (with the correct number of significant figures)? 0 .1 2 .3 4 5 A. 0.26 m B. 0.2610 m C. 0.26100 m D. 0.260 m E. 0.2600 m
Keith LeannonLv2
24 Aug 2019