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moles review answers

 1. 3 7. 413. 4 
 2. 2 8. 3 14. 3
 3. 4 9. 4 15. 1
 4. 4 10. 2 16. 2
 5. 1 11. 4 17. 2
 6. 4 12. 3 18. 1

 

19. coefficients are 1,2,2

20. fermentation, decomposition

21. decomposition, redox

22. the mass of the reactants equals the mass of the products

23. 4, half of 8

24. there should be 4 black and white molecules and 1 all white molecule

25. coefficients are 1, 8, 5, 6

26. a. 5 ÷ 8 = x ÷ 6    b. 3.75

27.  16 moles        2 x 8

28. N2 = 14.0(2)
H4 = 1.0(4)
C = 12.0     and 16.0(3)                 96.0 g

29. 11 ÷ 44  =  .25 mol

30. 8.40 g / 58.3 g per mol

31. 0.050 ÷ 2 = 0.025 mol

32. NaHCO3

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