Fe2O3 + 3CO -> 2Fe + 3CO2 If 15.5 grams of Iron (III) oxide reacts completely in the presence of excess carbon monoxide, how many grams of elemental iron is formed?​

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's filtration, but this is an assumption so my apologies if i got this

plasma - state of matter made up of electrically charged particles