Calculate how many grams of iron can be made from 16.5 grams of fe2o3 and 10 grams of h2 by fe2o2 3h2 to 2fe 3h2o find the limiting reagent

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

How many atoms are there in 5.70 mol of mg

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.