Lab equipment matching

Select the correct answer. what is the nature of the se-cl bond in a molecule of selenium chloride (secl2) if the electronegativity value of selenium is 2.55 and that of chlorine is 3.16?

The reaction q+r2=r2q is found to be first order in r2 and

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.