Which of the following statements is not true of balancing a chemical equation?

Question

Which of the following statements is not true of balancing a chemical equation? 00 Select one a. The law of conservation of matter must be followed. Coefficients are used to balance the atoms on both sides. C. Phases are often shown for each compound but are not critical to balancing an equation d. All of the above statements (a-d) are true. e. When the following equation is balanced using the smallest possible integers, what is the coefficent of oxy red @D..4.00" F6 F7 F8 F9 F10 F11 F12 SysRa 7 8 9 0

Explanation / Answer

Options a b c and d are correct:

Law of conservation of matter or mass says that the atoms participated in the reaction are same and also the number of atoms remains conserved and hence the total mass should be conserved . Therefore while writing a balanced equation , we follow the conservation of matter.   

As the number of atoms are also conserved.. coefficients are used in order to balance the number of atoms in each side(i.e reactants and products)

Phases are just to give information about the state of the compound. And these are not critical in balancing the equation

Each subscript indicates a unique compound/molecule and hence the subscript may or may not be the same while writing the equation

2C + O2 ---> 2CO

HERE the subscripts are not same

C + O2 --> 2CO2   

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