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PART 5. Balance the chemical reactions. Write the correct numerical coefficient on the line in front of each chemical. If the number is 1, delete

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PART 5. Balance the chemical reactions. Write the correct numerical coefficient on the line in front of each chemical. If the number is "1," delete the line or leave it blank. If the equation is balanced then write "balanced" beside. ( 20 marks) 1. C3H4+O2 CO2+H2O[4 marks] 2. H2SO4+NaOH a H2O+Na2SO4[4 marks] 3. Zn+CuNO3 a Cu+Zn(NO3)2[4 marks] 4. Ba(ClO3)2aBaCl2+O2[3 marks] 5. K+O2 K2O[3 marks]

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