The correct molar coefficients will be 1, 3, 3, and 1 respectively.
A balanced chemical equation is an equation that obeys the law of conservation of atoms.
In other words, the number of atoms of the elements in the reactants must be equal to the number of atoms of the same elements in the products.
Hence in the reaction with the chemical equation: [tex](NH_4)_3PO_4 +HCI --- > NH_4Cl +H_3PO_4[/tex]
The number of atoms of N, H, P, O, and Cl in the reactants must be the same as in the products.
Thus, the balanced equation of the reaction, in this case, will be:
[tex](NH_4)_3PO_4 +3HCI --- > 3NH_4Cl +H_3PO_4[/tex]
Therefore, the correct molar coefficients for balancing the equation are 1, 3, 3, and 1 respectively.
More on balancing chemical equations can be found here: https://brainly.com/question/15052184
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