q2w.101 - .. 3. (6 pts) It takes 0.107 cal to heat 1.00 g...

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Dr. Zellmer Chemistry 101 Wednesday 9:30 AM Time: 23 mins Summer Quarter 2008 July 2, 2008 Quiz II Name Rec. Instr. ---------------------------------------------------------------------------------------------------------------------------------------- Show ALL your work to receive full credit. 1. (5 pts) The specific gravity of ethylene glycol is 1.1088. What volume (in L) of ethylene glycol is required to provide 1.125 kg? You MUST use the factor unit method to receive full credit ! 2. (7 pts) The amount of lead, Pb, in the air on a particular day is 1.60 x 10 ! 10 lb/ft 3 ? How many grams of lead are present in 3.00 m 3 ? (1.000 lb = 453.6 g) (You MUST use the factor unit method to receive full credit .) OVER .
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Unformatted text preview: .. 3. (6 pts) It takes 0.107 cal to heat 1.00 g of chromium by 1.00C. What mass (in grams) of chromium can be heated from 15.0C to 90.0C when 581 cal of heat is added? 4. (10 pts) Fill in the blanks in the table below for the isotopes indicated. Symbol number of number of number of atomic mass protons neutrons electrons number number ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 144 55 Cs 55 ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 54 96 ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 5. (1 pt) What is the general name used for Group 2A elements? 6. (1 pt) Give one example of a semi-metal (metalloid)....
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q2w.101 - .. 3. (6 pts) It takes 0.107 cal to heat 1.00 g...

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