Suppose you combine 1583L of nitrogen gas and 4495L of hydrogen gas at STP, heat the mixture to run the reaction then separate the ammonia from the reaction mixture. What volume of reactant measured at STP is left over in liters? Assume the reaction goes to completion. N2(g) + 3H2 (g) —> 2NH3 (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