Question

Given the equation Si(s) + 2Cl2(g) → SiCl2(g) ?SiCl2(l) + 687 kJ, how much heat is produced when 106 g of Cl2 react?



A. 7.28 × 10^4 kJ
B. 513 kJ
C. 360 kJ
D. 180 kJ

Answer 1

72.3 kJ/2mol MgO x 5/2 mol MgO = 180.75kJ

106g / 70.90g/mol Cl2 x 687kJ/2molCl2 = 513.55kJ

Answer 2

so now u can figure out which is the answer.