Chemistry · Chemical equations and stoichiometry
What is the correct formula for calcium chloride?
What is the correct formula for calcium chloride?
- A. \( C a_{2} C l_{2} \)
- B. \( C a C l \)
- C. \( \operatorname{caCl}_{2} \)
- D. \( C a C l_{3} \) E \( . C a_{2} C l \)
Step-by-step solution
Calcium (Ca) has a charge of +2, and chloride (Cl) has a charge of -1. To balance the charges, one Ca²⁺ ion requires two Cl⁻ ions, resulting in the formula CaCl₂. Option C, written as \(\operatorname{caCl}_{2}\), correctly represents this formula despite the lowercase 'c'.
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