How many moles of iodine are in 0.333 mol of cao(i03)2 ?

0.666 mol I

Explanation:

0.333 mol CaO(IO₃)₂ × (2 mol IO₃ / mol CaO(IO₃)₂) = 0.666 mol IO₃

0.666 mol IO₃ × (1 mol I / mol IO₃) = 0.666 mol I

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