Explain in terms of intermolecular forces the following: why nai has a higher melting point than i2 because nai can form hydrogen bonds, and i2 cannot. because nai is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the i2 molecules. because nai is a solid, and i2 is a liquid. because nai is soluble in water, and i2 is not.

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

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

the answer is 303.15 or 303