Please help fast: How many moles of oxygen gas are consumed in the production of 5.00 g of iron(III) oxide from metallic iron?

4Fe(s) + 302(g)→2Fe2O3(g)

___ mole(s) in O2

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 answers are

c and c