Balancing Equations #2

Balancing Equations: Chemical and Nuclear

How molecules are symbolized ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Na = 1, O = 1, H = 1 Ca = 1, O = 2, H = 2 Ca = 3, O = 6, H = 6 O H O H Ca

Balancing equations: MgO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],O Mg O +  Mg O

Balance equations by “inspection” ,[object Object],5 2 3 3.5 2 7 4 6 2 2 2 2 6 3 C 2 H 6 + O 2  CO 2 + H 2 O a) P 4 + O 2  P 4 O 10 b) Li + H 2 O  H 2 + LiOH c) Bi(NO 3 ) 3 + K 2 S  Bi 2 S 3 + KNO 3 d) C 2 H 6 + O 2  CO 2 + H 2 O From Mg + O 2  MgO 2Mg + O 2  2MgO is correct Mg + ½O 2  MgO is incorrect Mg 2 + O 2  2MgO is incorrect 4Mg + 2 O 2  4MgO is incorrect

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],skeleton(UNBALANCED) equations:

[object Object],[object Object],[object Object],[object Object],Cu + Fe 2 (SO 4 ) 3 NR (no reaction) Zn + Li 2 CO 3 Cu + AlCl 3 Returning to reaction types Fe + CuSO 4  LiOH + H 2 Al 2 O 3 2 Ni + NaCl  Al + CuCl 2  Li + ZnCO 3  Li + H 2 O  Al + O 2  3 3 3 2 2 3 2 ½ 2 2 2 3 2 4 Cu Hg Ag Ca Mg Al Zn Fe Ni Sn Pb H Au Li Na K

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Here are some more to balance:

Balancing Equations #2

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Balancing Equations #2