Can any one me to answers this question i don't get it. in advance.
what is the limiting reactant when 6.8 moles of iron react with 8.9 moles of oxygen gas?
unbalanced equation: fe + o2 _ fe2o3
show, or explain, all of your work along with the final answer.

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