What are the correct coefficients for the following reaction: Fe2O3 + Al —> Fe + Al2O3

A) 2, 1, 1, 2
B) 2, 2, 2, 2
C) 1, 2, 2, 2
D) 1, 2, 2, 1

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

‘which reaction would most likely require the use of an inert electrode?