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9. A balance has a precision of +/- 0.001g. A sample weighs about 8 g on this balance. How many significant figures should be reported for this measurement? 10. The density of a metal is 9.80 g/ml. What is the mass of a sample of metal when dropped in28.9 ml water, the volume increases to 56.4 ml?

9. A balance has a precision of +/- 0.001g. A sample weighs about 8 g on this balance. How many significant figures should be reported for this measurement? 10. The density of a metal is 9.80 g/ml. What is the mass of a sample of metal when dropped in28.9 ml water, the volume increases to 56.4 ml?

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O. An auTomobile Is abTe TO Traver 900 I on 39.8 gar oT gaSOine, whaT IS The gas mileage in km/L? 7. Neon has a low boiling point of approximately -246 °C. What is the boiling point in Kelvins and oE?. 8. Round off the following to three significant figures: b) 80 g a) 134.89 m c) 1255 ml d) 1.2x10-5 mm 9. A balance has a precision of +/- 0.001g. A sample weighs about 8 g on this balance. How many significant figures should be reported for this measurement? 10. The density of a metal is 9.80 g/ml. What is the mass of a sample of metal when dropped in28.9 ml water, the volume increases to 56.4 ml? 11. Label each of the following as either a physical process (change) or a chemical process (change). a) The metal gets warmer c) Corrosion of Iron metal b) Explosion of nitroglycerin d) Water condenses on the metal 12. Identify the following characteristics as physical properties or chemice! properties. a) Silver metal is white c) Silver is a lustrous metal b) Zinc has a density of 7.13 g/ml at 25°C d) Sodium is highly reactive with water pe here to search 70
Transcribed Image Text:O. An auTomobile Is abTe TO Traver 900 I on 39.8 gar oT gaSOine, whaT IS The gas mileage in km/L? 7. Neon has a low boiling point of approximately -246 °C. What is the boiling point in Kelvins and oE?. 8. Round off the following to three significant figures: b) 80 g a) 134.89 m c) 1255 ml d) 1.2x10-5 mm 9. A balance has a precision of +/- 0.001g. A sample weighs about 8 g on this balance. How many significant figures should be reported for this measurement? 10. The density of a metal is 9.80 g/ml. What is the mass of a sample of metal when dropped in28.9 ml water, the volume increases to 56.4 ml? 11. Label each of the following as either a physical process (change) or a chemical process (change). a) The metal gets warmer c) Corrosion of Iron metal b) Explosion of nitroglycerin d) Water condenses on the metal 12. Identify the following characteristics as physical properties or chemice! properties. a) Silver metal is white c) Silver is a lustrous metal b) Zinc has a density of 7.13 g/ml at 25°C d) Sodium is highly reactive with water pe here to search 70
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