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Multiple Choice
Write the balanced equation for the following by inserting the correct coefficients in the blanks.
A
1, 1, 3, 1
B
2, 3, 3, 1
C
1, 3, 6, 2
D
2, 3, 6, 1
Verified step by step guidance
1
Identify the chemical formulas of the reactants and products: Na3PO4, Ca(NO3)2, NaNO3, and Ca3(PO4)2.
Count the number of atoms for each element on both sides of the equation. For example, count the number of Na, P, O, Ca atoms in the reactants and products.
Start by balancing the element that appears in the least number of compounds. In this case, balance the calcium (Ca) atoms first.
Next, balance the sodium (Na) atoms by adjusting the coefficients of Na3PO4 and NaNO3.
Finally, balance the nitrate (NO3) and phosphate (PO4) groups by adjusting the coefficients of Ca(NO3)2 and Ca3(PO4)2, ensuring that the number of each group is equal on both sides of the equation.