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Consider three compounds, NaCl, Cl2, and HCl. Which statement is true?
a. NaCl is a solid at room temperature, Cl2 and HCl are gases.
b. Cl2 is a solid at room temperature, NaCl and HCl are gases.
c. HCl is a solid at room temperature, NaCl and Cl2 are gases.
d. NaCl and HCl are solids at room temperature, Cl₂ is a gas.



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