Which of the Following Is an Example of a Proper

question 67

Multiple Choice

Which of the following is an example of a proper formation reaction?

• A) 2Na(s) + Cl₂(g) → 2NaCl(s)
• B) 2H₂(g) + O₂(g) → 2H₂O(ℓ)
• C) Ca(s) + C(s) + 3/2 O₂(g) → CaCO₃(s)
• D) 2Fe(s) + 3P(s) + 12O(g) → Fe₂(PO₄)₃
• E) H₂(g) + Cl₂(g) → 2HCl

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