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B a l a n c i n g E q u a t i o n s

B a l a n c i n g E q u a t i o n s. B y I n s p e c t i o n. W h a t d o t h e y R e p r e s e n t W h y M u s t t h e y b e B a l a n c e d B a l a n c i n g B y I n s p e c t i o n. C h e m i c a l E q u a t i o n s.

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B a l a n c i n g E q u a t i o n s

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  1. B a l a n c i n g E q u a t i o n s B y I n s p e c t i o n

  2. W h a t d o t h e y R e p r e s e n t • W h y M u s t t h e y b e B a l a n c e d • B a l a n c i n g B y I n s p e c t i o n

  3. C h e m i c a l E q u a t i o n s A w a y t o r e p r e s e n t a c h e m i c a l r e a c t i o n o n p a p e r .

  4. E q u a t i o n s m u s t b e b a l a n c e d : A t o m s c a n b e n e i t h e r c r e a t e d n o r d e s t r o y e d b y o r d i n a r y c h e m i c a l m e a n s .

  5. E q u a t i o n s m u s t b e b a l a n c e d : T h i s m e a n s w e m u s t a l w a y s h a v e t h e s a m e n u m b e r o f e a c h t y p e o f a t o m o n b o t h s i d e s o f t h e e q u a t i o n .

  6. 7 s t e p s t o b a l a n c e b y i n s p e c t i o n 1. C h e c k f o r d i a t o m i c m o l e c u l e s - H2 - N2 - O2 - F2 - Cl2 - Br2 - I2 • I f t h e s e e l e m e n t s a p p e a r b y t h e m s e l v e s i n a n e q u a t i o n , t h e y M U S T b e w r i t t e n w i t h a s u b s c r i p t o f 2 .

  7. 7 s t e p s t o b a l a n c e b y i n s p e c t i o n 2. B a l a n c e m e t a l s 3. B a l a n c e n o n m e t a l s 4. B a l a n c e o x y g e n 5. B a l a n c e h y d r o g e n

  8. 7 s t e p s t o b a l a n c e b y i n s p e c t i o n 6. R e c o u n t a l l a t o m s 7. I f E V E R Y c o e f f i c i e n t w i l l r e d u c e , r e w r i t e t h e w h o l e e q u a t i o n u s i n g t h e s i m p l e s t r a t i o o f c o e f f i c i e n t s .

  9. B a l a n c e t h i s e q u a t i o n K C l O 3 --> K C l + O 2 K C l O 3 --> 2 K C l + 3 O 2

  10. B a l a n c e t h i s e q u a t i o n Na2O2 + H2O --> NaOH + O 2Na2O2 + 2H2O --> 4NaOH + O2

  11. B a l a n c e t h i s e q u a t i o n Al + H2SO4 --> Al2(SO4)3 + H 2Al + 3H2SO4 --> Al2(SO4)3 + 3H2

  12. B a l a n c e t h i s e q u a t i o n Hg(OH)2 + H3PO4 --> Hg3(PO4)2 + H2O 3Hg(OH)2 + 2H3PO4 --> Hg3(PO4)2 + 6H2O

  13. B a l a n c e t h i s e q u a t i o n KI + Cl --> KCl + I 2KI + Cl2 --> 2KCl + I2

  14. B a l a n c e t h i s e q u a t i o n NH3 + O --> N + H2O 4NH3 + 3O2 --> 2N2 + 6H2O

  15. B a l a n c e t h i s e q u a t i o n Al2S3 + NaHCO3 --> Al(OH)3 + Na2S + CO2 Al2S3 + 6NaHCO3 --> 2Al(OH)3 + 3Na2S + 6CO2

  16. B a l a n c e t h i s e q u a t i o n CuO + NH3 --> Cu + H2O + N 3 CuO + 2 NH3 --> 3 Cu + 3 H2O + N2

  17. B a l a n c e t h i s e q u a t i o n chlorine + magnesium iodide --> Cl2 + MgI2 --> MgCl2 + I2

  18. B a l a n c e t h i s e q u a t i o n F + NaOH --> NaF + O + H2O 2 F2 + 4 NaOH --> 4 NaF + O2 + 2 H2O

  19. B a l a n c e t h i s e q u a t i o n sodium chloride + sulfuric acid --> 2NaCl + H2SO4 --> 2HCl + Na2SO4

  20. B a l a n c e t h i s e q u a t i o n p o t a s s i u m n i t r a t e d e c o m p o s e s i n t o p o t a s s i u m n i t r i t e a n d o x y g e n 2KNO3 --> 2KNO2 + O2

  21. B a l a n c e t h i s e q u a t i o n bismuth nitrate + calcium iodide --> 2Bi(NO3)3 + 3CaI2 --> 2BiI3 + 3Ca(NO3)2

  22. B a l a n c e t h i s e q u a t i o n NH3 + O --> N2O4 + H2O 4NH3 + 7O2 --> 2N2O4 + 6H2O

  23. B a l a n c e t h i s e q u a t i o n i r o n ( I I I ) o x i d e r e a c t s w i t h c a r b o n m o n o x i d e t o p r o d u c e c a r b o n d i o x i d e a n d i r o n Fe2O3 + 3 CO --> 2 Fe + 3 CO2

  24. E N D E Q U A T I O N S

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