5 7) Consider the following reaction
3 Si + 2 N, - Si, N
When 21.44 moles of Si reacts with 17.62 moles of N,, how many moles of SiN
are formed? What is the limiting reactant and what is the excess reactant

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

1. they vary with a higher number because boiling is way hotter than melting

d

explanation: