Multiple Choice
Which of the following is the correct chemical formula for the ionic compound sodium sulfate?
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3. Chemical Reactions
Naming Ionic Compounds
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Which compound is formed when sodium and chlorine react together?
A
NaClO
B
Na2Cl2
C
Na2Cl
D
NaCl
Verified step by step guidance1
Identify the elements involved in the reaction: sodium (Na) and chlorine (Cl).
Recall that sodium is a metal that tends to lose one electron to form a Na⁺ ion, and chlorine is a nonmetal that tends to gain one electron to form a Cl⁻ ion.
Determine the simplest ratio of ions that results in a neutral compound. Since Na⁺ has a +1 charge and Cl⁻ has a -1 charge, they combine in a 1:1 ratio.
Write the chemical formula by placing the cation (Na⁺) first followed by the anion (Cl⁻), resulting in NaCl.
Confirm that the formula NaCl represents a neutral compound formed by the ionic bond between sodium and chlorine.
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