Ionic salts are used for melting ice on roads for two reasons: they are effective at lowering the freezing point when they dissolve in the water and they sometimes release heat when they dissolve in the water. The heat of solution depends on the energy involved in breaking apart the salt and the energy involved in dissolving the ions in water (hydration). The enthalpy of hydration for each ion depends on the strength of the intermolecular force between the ion and water, which is electrostatic and follows Coulomb's law. Rank the following in order of their predicted ability to melt ice due to their heat of solution:

a. NaCl
b. KCl
c. CaCl2

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

it should be all of them because it asks if you included all of those in your answer

explanation:

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

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