Please help on number 6 will mark as brainliest

Oil- nonpolar

Sugar- polar

Salt- Polar

Dish soap- It is both polar and nonpolar

Explanation:

a) so they will remain separate from molecules of a polar solvent such as water

b) Sugars are polar due to their -OH groups, and dissolve readily in water by forming many hydrogen bonds.

c)At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt.

d) Soap molecules have both properties of non-polar and polar at opposite ends of the molecule.

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

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