We put 10.0 moles of N2O into a 2.0 L container at some temperature. At equilibrium, 2.20 moles of N2 remain. Calculate the equilibrium constant, Kc, for the reaction at this temperature. 2N2O(g) "yields" 2N2(g) + O2(g)

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

the objects have the same charge.