Laboratory Section (Monday or Wednesday) Circle one Formulas: K=°C + 273 -(1.8)

Question

Laboratory Section (Monday or Wednesday) Circle one Formulas: K=°C + 273 -(1.8) (°C) + 32 Heat (mass of substanceXspeific heat of substance) (AT) lft.=12 in. lin, = 2.54 cm 11b = 453.6 g 1 pint 0.4732 L 1hour = 60 minutes 1 minute 60 seconds Igal = 4 qt 1 qt 0.9463 L 1mile = 5280 ft = 1.609 km 1 meter = 1.0936 yards I Mark the best answer on your scantron 1, If scientific experiments produce consistent results over a long period of time, it would verify a A theory" B) hypothesis c) law c+h2 D) rule 2, 267-F is equivalent to 404 K X ) 116°C C) 540 K D) 389 K oe) ( L 130 Page 1

Explanation / Answer

1. Law
Law is mathematical expression

2. Tc = 5(Tf-32)/9
       = 5(267-32/9
       = 130C0
       = 130+273 = 383K D

3. D total atoms 14

4. A. 82.28Cm^2

5. D

9. B (N2+o2)

10. C four

11.C q= mcdeltT
      =30*4.18*30 =3765 j

12.C 3.82*10^-3

. C

7. C gases do not have fixed valume

8.C Volume = mass/density
           = 2.35/9.43
           = 0.249 ml

13. D. physical chage

14.B density = mass/volume
            = 101.074/50
            = 2.02148g/ml

15. A shiny

16.D. 1cm = 0.01m

17. A H2 ,O2

18. C.wood

19.c 12 3 sulphur and 9 oxygens

20. A 1.04*0.31 in 0.32 two signeficant figures

21.C N2 is element

22. B

23 B chnge hydrogen and oxygen to water

24. B law of conservation of mass

25. C

26.B mass = volume* density
         = 9.5*8.92 = 84.74gm

27. c

28.D.

29.c 7 atoms N2So4 2 Na +1S + 4O = 7

30. C

31.a GAS

32. B non metals are poor conductors

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