1 Describe the following as quantitative or qualitative b A mass of 10 0 grams a Color c Smell d Texture e 20 3 cm in length f 100 C 2 Describe the difference between a scientific law and a scientific theory 3 Label the following as pure substances or mixtures If the item is a mixture identify it as a homogeneous mixture or a heterogeneous mixture a Salt water b Sodium chloride NaCl c Silver metal Ag d Salad 4 Explain why mass is an extensive property 5 Explain why temperature is an intensive property 2014 Marcus Jennings 6 The mass of an empty beaker is 76 834 grams A small piece of metal is placed inside the beaker which is then placed on a digital balance The mass of the beaker and the piece of metal is 121 814 grams Next a graduated cylinder is filled to a volume of 10 1 mL When the piece of metal is added to the graduated cylinder the water level rises to 14 7 mL What is the density of the metal 7 Lead has a density of 11 35 g mL What volume in mL does 0 253 kg of lead occupy 8 Convert the following a 26 2 F to C b 214 C to F c 22 0 C to K d 98 6 F to K 2014 Marcus Jennings 9 How many significant figures are in the following a 0 0124 g b 1 003 km c 6 022 x 1023 atoms d 350 pm 10 Convert 15 3 g mL to kg m3 11 Explain the difference between accuracy and precision 2014 Marcus Jennings
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