Question

The reaction of aluminum with bromine is shown here. The equation for the reaction is
2 Al(s) + 3 Br2(ℓ) n Al2Br6(s)
1. What are the stoichiometric coefficients in this equation?
(a) 1, 3, 4 (b) 2, 3, 1 (c) 1, 6, 8 (d) 1, 1, 1

Answer 1

Answer is (b)

2,3,1 is the stoichiometry

The values in front of the elements are the stoichiometric values
(Since Al2Br6 has no value in front, it's considered 1)