Exam l General Chemistry t r f it ru n Nh Total of 100 pts eol oo Version A fieqI 4 Section A Multiple Choice Questions 3 points each 1 How many significant figures are in the measurement 0 0025020 kg a 3 b 4 s d 1 e Z 2 A chemical change occurs when a paper is shredded b water is vaporized c salt is dissolved in water a sfice of toast is burned e powdered lemonade is stirred into water 3 ffhich of the following represents a physical property UMercury is a silvery liquid at room temperature b Sodium metal is extremely reactive with chlorine gas c Aluminum has no tendency to rust d Butane is highly flammable e Argon is unreactive 4 The outside air temperature is 17 F What is it inK 6 What is the mass of in g of a piece of metal with densitv 9 98 glcm3 The dimensions of the piece of metal are2 00 cm 3 00 cm and 1 00 cm a 290 b 322 1s ffiza az 5 How many significant figures are in the answer to the following problem c 281 48 1 203 x 3 21 18 23 3 bql 3 t8 t b two c three A bfr ffi b qlfivte f fuJM 51 80 I a one a 59 88 g sl aa g cm3 c 1 669 d 166 g cm3 e 0 6009 f 0 600g cm3 7 Which of the following is an alkali metal a Cu b Zn r d Ag e Ca Answer 1 U Answer D V V Anr r V D D Answer e 8 33 Answer X r Vr V Answer U
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