Question

8. Which chemical equation is balanced?

2Na+ 2Cl₂ → 2NaCL
4HCIO+2P 010 → H₂PO4 + 3C1₂0,
-
4
3CaCl₂ + 2Na3PO4 → Ca3(PO4)2 +6NaCl
a.
b.
C.

Answer 1

The balanced equation is A) 3CaCl₂ + 2Na₃PO₄ → Ca₃(PO₄)₂ +6NaCl.

Step-by-step explanation:

Out of the given chemical equations, the balanced equation is option C: 3CaCl₂ + 2Na₃PO₄ → Ca₃(PO₄)₂ +6NaCl. In a balanced chemical equation, the number of atoms of each element is the same on both sides of the equation. Let's take a look at the equation:

• 3CaCl₂ contains 3 calcium (Ca) atoms and 6 chloride (Cl) atoms
• 2Na₃PO₄ contains 2 sodium (Na) atoms, 2 phosphorus (P) atoms, and 8 oxygen (O) atoms
• Ca₃(PO₄)₂ contains 3 calcium (Ca) atoms, 2 phosphorus (P) atoms, and 8 oxygen (O) atoms
• 6NaCl contains 6 sodium (Na) atoms and 6 chloride (Cl) atoms

As you can see, the number of atoms is the same on both sides, so the equation is balanced.