Identify which process you would use to separate the following mixtures ___
Sand and Water

_
Grades of gasoline that have differing boiling points

_
Blend of two oils with freezing points of 15 degree Celsius and -5 degree Celsius

___
Pigments in a dye

1.
Distillation

2.
Chromatography

3.
Freezing

4.
Filtration

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

it is the most commonly accepted one

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )