Drag and drop the correct answer: 
Answer variants:
Check for the correctness and include the physical states
To balance alter the subscript if the element
Start balancing with the compound that includes the maximum number of atoms
To balance change the subscript of compound
Count the number of atoms on both reactants and products in an unbalanced equation
Count the atoms of each element to confirm that the balanced equation is balanced
Add coefficients to balance without changing the formulae of reactants and products
Examine the equation for the other unbalanced element and repeat the process for all the elements
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