-When hydrogen is passed over copper(II) oxide, this reaction takes place: CuO (s) + H2 (g) >Cu (s) + H2O (l)
(A) It is a redox reaction, because
(B) The reducing agent in this reaction is

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

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?