Answer Happy

13. Answer each with correct Sig Figs and units when appropriate (correct symbols): Round 39.67 teragrams to 1 sig figs: 40 tg 7-1 a. b. What is 10.9-3.85? c. Report 3,010 x 10 centimeters in standard notation d. Express 2070 microliters in scientific notation e. Round 0.00989 to 1 sig fig:. (10.0 m)(0.5m), 0.003 m f. What is 14. Fill in the blanks to complete the table. (16 pts) Isotopic Symbol 42 Ca 15 гар AGT 196 79 Atomic # 20 15 79 # of Protons 20 15 79 -003010cm SF 2.070x10 microL SFX-01000 SF 1666.7 m # of Neutrons 22 14 117 - # of Electrons 20 90.9 15 78 7.15
3 17. The density of water is 0.9975 g/mL. How many g does 375 mL of water weigh? (3 pts) 375m 0.99759 IME 18. How many mg are in 275 ng? (4 pts) 2750g| -4 10 my (ing =374.06259 = 374g ing=10-9 mg x = 2.75 x10 mg 19. How many liters of wine can be held in 5 wine barrels....each barrel has a capacity is 28.0 gal. (4 pts) 5b 28 0d 3.785L 529.9L 530L 16=28.0gal Igal = 3.785L 11 Igat SF 45.0 605 1 sec 1 2 97,5m² quare meters 20. Calculate the rate in miles per hour of a gas particle moving at 45.0 meters per second. (4 pts) M 37. COM 103 SA-621 mil LISAT 1hr 10x Ihr A min= =10060 2000Kms.r Im=1 8 D =1000eeee 101 10² 21. You want to lay some sod in your yard, which measures 15.0 meters wide by 6.5 meters long. Each piece of sod is 3 square feet.....how many pieces of sod do you need to buy? (5 pts) 34+ 97.5 1.094 3FF Isod Im 148 BFX h =106.66550d ? #²²=1000 od C 1 Isod: 3 1m = 1.094 lyd = 3ft