Which statement best explains why heating a liquid affects its viscosity?

1.)the molecules move faster at higher temperatures and overcome attractions more easily.
2.)the molecules move faster at higher temperatures, and the attractions between them increase.
3.)the molecules move slower at higher temperatures and overcome attractions more easily.
4.)the molecules move slower at higher temperatures, and the attractions between them decrease.

The correct option is this: THE MOLECULES MOVE FASTER AT HIGHER TEMPERATURE AND OVERCOME ATTRACTIONS MORE EASILY.

The viscosity of a liquid substance refers to its tendency to resist flow as a result of the interactions between the molecules of the liquid. The stronger the molecular attraction between the molecules of the liquid the higher the viscosity. When heat is applied to a viscous liquid, its temperature increases and the force of attraction between the molecules becomes broken.

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

1. they vary with a higher number because boiling is way hotter than melting