Problem: The valence of aluminum is +3, and the valence of chlorine is –1. The formula for aluminum chloride is correctly written as a. AlCl3 b. Al3Clc. ClAl3 d. Cl3Al

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The valence of aluminum is +3, and the valence of chlorine is –1. The formula for aluminum chloride is correctly written as 

a. AlCl3 

b. Al3Cl

c. ClAl3 

d. Cl3Al

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